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Alopecia (hair loss)

Symptoms

Causes

Treatment


Losing your hair isn't usually anything to be worried about but it can be upsetting. Treatment may help with some types of hair loss.

Causes of hair loss

It's normal to lose hair. We can lose between 50 and 100 hairs a day, often without noticing.

Hair loss isn't usually anything to be worried about but occasionally it can be a sign of a medical condition.

Some types of hair loss are permanent, like male and female pattern baldness. This type of hair loss usually runs in the family.

Other types of hair loss may be temporary. They can be caused by:

  • an illness
  • stress
  • cancer treatment
  • weight loss
  • iron deficiency

See a GP if:

  • you have sudden hair loss
  • you develop bald patches
  • you're losing hair in clumps
  • your head also itches and burns
  • you're worried about your hair loss

What happens at your appointment

Your GP should be able to tell you what's causing your hair loss by looking at your hair.

Tell your GP if your hair loss is affecting your wellbeing and ask what treatments are available.

See your GP first to get a clear and accurate idea of what's causing your hair loss before thinking about going to a commercial hair clinic, which can be costly.

Treatment for hair loss

Most hair loss doesn't need treatment and is either:

  • temporary and it will grow back
  • a normal part of getting older

Hair loss caused by a medical condition usually stops or grows back once you've recovered.

There are things you can try if your hair loss is causing you distress. However, most treatments are not available on the NHS so you will have to pay for them.

No treatment is 100% effective.

Finasteride and minoxidil

Finasteride and minoxidil are the main treatments for male pattern baldness.

Minoxidil can also be used to treat female pattern baldness. Women should not use finasteride.

These treatments:

  • don't work for everyone
  • only work for as long as they're used
  • are not available on the NHS
  • can be expensive

Wigs

Some wigs are available on the NHS but you may have to pay unless you qualify for financial help.

Synthetic wigs:

  • NHS cost £70.15
  • last 6 to 9 months
  • easier to look after than real-hair wigs
  • can be itchy and hot

Real-hair wigs:

  • NHS cost £271.70
  • last 3 to 4 years
  • harder to look after than synthetic wigs
  • look more natural than synthetic wigs

Find out more about NHS wigs and costs.

Other hair loss treatments

TreatmentDescription
Steroid injectionInjections given into bald patches
Steroid creamsCream applied to bald patches
ImmunotherapyChemical applied to bald patches
Light treatmentShining ultraviolet light on bald patches
TattooingTattoo used to look like short hair and eyebrows
Hair transplantHair cells are moved to thinning patches
Scalp reduction surgerySections of scalp with hair are stretched and stitched together
Artificial hair transplantSurgery to implant artificial hairs


Some of these treatments may not be available on the NHS.

Find out more about cancer and hair loss.

Emotional help

Losing hair can be upsetting. For many people, hair is an important part of who they are.

If your hair loss is causing you distress, your GP may be able to help you get some counselling.

You may also benefit from joining a support group, or speaking to other people in the same situation on online forums.

Try these online support groups:


Symptoms

Different types of hair loss have different symptoms. Sometimes, both the head and body can be affected.

Male- and female-pattern baldness

Male-pattern baldness usually starts around the late twenties or early thirties. By their late thirties, most men have some degree of hair loss.

Male-pattern baldness is so called because it generally follows a set pattern. The first stage is usually a receding hairline, followed by thinning of the hair on the crown and temples. This can leave a horseshoe shape of hair around the back and sides of the head. Sometimes it can progress to complete baldness, although this is uncommon.

Women's hair gradually thins with age, but women generally lose hair from the top of their head only. This is usually more noticeable after the menopause (when a woman's periods stop at around 52 years of age).

Alopecia areata

Alopecia areata causes patches of baldness about the size of a large coin. They usually appear on the scalp but can occur anywhere on the body.

There are usually no other symptoms, although in around one in 10 people the fingernails may also be affected, and may have a pitted or grooved appearance.

In most cases of alopecia areata, hair will grow back in a few months. At first, hair may grow back fine and white, but over time it should thicken and regain its normal colour.

Some people with alopecia areata go on to develop a more severe form of hair loss, such as:

  • alopecia totalis (no scalp hair) 
  • alopecia universalis (no hair on the scalp and body)

Scarring alopecia

As scarring alopecia is caused by another health condition, you will have symptoms relating to this condition besides hair loss. Unlike other forms of hair loss, the skin where the hair has fallen out is likely to be affected in some way. 

For example, in cases where lichen planus has caused scarring alopecia, the skin may develop an itchy rash and may be inflamed.  

In scarring alopecia, the hair follicles (small holes in the skin that contain the roots of each hair) are damaged and replaced with scar tissue. This means that new hair cannot grow, so the hair loss is permanent.

Anagen effluvium

Anagen effluvium, most commonly caused by chemotherapy, usually occurs quickly. In most cases, hair loss is noticeable within a few weeks of chemotherapy starting.

In anagen effluvium, hair loss is widespread, rather than in patches. As well as losing hair from your scalp, you may also lose hair from your body and face.

This type of hair loss is usually temporary. Your hair should stop falling out and start to grow back a few months after chemotherapy has stopped.

Telogen effluvium

In telogen effluvium, there is widespread hair loss from your scalp, rather than specific bald patches. Your hair may feel thinner than before, but you are unlikely to lose it all. Your other body hair will not usually be affected.

In most cases of telogen effluvium, your hair will stop falling out and start to grow back within six months.


Causes

Each type of hair loss has different causes, although the causes of some types are poorly understood.

Male- and female-pattern baldness

Male-pattern baldness is hereditary, which means it runs in families. It is not clear if this is the case with female-pattern baldness.

Male-pattern baldness is thought to be caused by oversensitive hair follicles (holes in the skin that contain the roots of each hair). This is linked to the hormone dihydrotestosterone (DHT), which is made from the male hormone testosterone.

If there is too much DHT, the follicles react to it. The hair becomes thinner and grows for a shorter length of time than normal. The balding process is gradual because different follicles are affected at different times.

The causes of female-pattern baldness are less well understood. Women who have been through the menopause may have an increased chance of female-pattern baldness because they have fewer female hormones.

Alopecia areata

Immune system imbalance

Alopecia areata is an autoimmune condition. The immune system is the body's natural defence system, which helps protect it from infection by bacteria and viruses.

Usually, the immune system attacks the cause of an infection, but in the case of alopecia areata it damages the hair follicles instead. It is not clear exactly why this happens. Fortunately, the hair follicles are not permanently damaged and in many cases the hair grows back within a few months.

Alopecia areata is more common among people with other autoimmune conditions, such as:

  • thyroid disease – conditions that affect your thyroid gland, such as an overactive thyroid (hyperthyroidism) 
  • diabetes – a condition caused by too much glucose (sugar) in the blood 
  • vitiligo – a condition that produces white patches on the skin

Alopecia areata is also more common among people with Down syndrome, a genetic condition that causes learning difficulties and affects physical development. More than one in 20 people with Down syndrome have alopecia areata.

Genetics

Some people may be genetically more vulnerable to alopecia areata. Certain genes (units of genetic material) may make the condition more likely.

Around one in five people with alopecia areata have a family history of the condition, suggesting that the tendency to develop the condition may be inherited. You may also be at an increased risk of alopecia areata if a member of your family has one of the autoimmune conditions mentioned above.

Scarring alopecia

Scarring alopecia is caused by permanent damage to the hair follicles. In many cases, it is not clear why this happens, although it is sometimes the result of another condition.

Conditions that can cause scarring alopecia include:

  • scleroderma – a condition that affects the body's connective (supporting) tissues, resulting in hard, puffy and itchy skin
  • lichen planus – a non-infectious, itchy rash that can affect many areas of the body
  • discoid lupus – a mild form of lupus that affects the skin, causing scaly marks and hair loss
  • folliculitis decalvans – a rare form of alopecia that most commonly affects men, causing baldness and scarring of the affected areas  
  • frontal fibrosing alopecia – a type of alopecia that affects post-menopausal women where the hair follicles are damaged, and the hair falls out and is unable to grow back

Anagen effluvium

Anagen effluvium is usually caused by medical treatments for cancer, most commonly chemotherapy.

However, not all chemotherapy drugs cause hair loss and sometimes the hair loss is so small it is hardly noticeable.

In some cases, other cancer treatments – including immunotherapy and radiotherapy – may also cause hair loss.

Telogen effluvium

Telogen effluvium is a type of temporary hair loss that can be caused by your body reacting to:

  • hormonal changes, such as those that take place when a woman is pregnant 
  • intense emotional stress
  • intense physical stress, such as childbirth
  • a short-term illness, such as a severe infection or an operation 
  • a long-term illness, such as cancer or liver disease
  • changes in your diet, such as crash dieting 
  • some medications, such as anticoagulants (medicines that reduce the ability of your blood to clot) or beta-blockers (used to treat a number of conditions, such as high blood pressure)   

Treatments

Although hair loss rarely needs to be treated, many people seek treatment for cosmetic reasons.

Many cases of hair loss are temporary, for example, due to chemotherapy, or they're a natural part of ageing and don't need treatment. However, hair loss can have an emotional impact, so you may want to look at treatment if you're uncomfortable with your appearance.

If hair loss is caused by an infection or another condition, such as lichen planus or discoid lupus, treating the underlying problem may help prevent further hair loss.

The various treatments for hair loss are outlined below. You can also read a summary of the pros and cons of the treatments for hair loss, allowing you to compare your treatment options.

Male-pattern baldness

Male-pattern baldness isn't usually treated, as the treatments available are expensive and don't work for everyone.

Two medicines that may be effective in treating male-pattern baldness are finasteride and minoxidil. Neither treatment is available on the NHS.

You may also want to consider wearing a wig or having surgery.

Finasteride

Finasteride is available on private prescription from your GP. It comes as a tablet you take every day.

It works by preventing the hormone testosterone being converted to the hormone dihydrotestosterone (DHT). DHT causes the hair follicles to shrink, so blocking its production allows the hair follicles to regain their normal size.

Studies have suggested finasteride can increase the number of hairs people have (hair count) and can also improve how people think their hair looks.

It usually takes three to six months of continuously using finasteride before any effect is seen. The balding process usually resumes within six to 12 months if treatment is stopped.

Side effects for finasteride are uncommon. Less than one in 100 men who take finasteride experience a loss of sex drive (libido) or erectile dysfunction (the inability to get or maintain an erection).

Minoxidil

Minoxidil is available as a lotion you rub on your scalp every day. It's available from pharmacies without a prescription. It's not clear how minoxidil works, but evidence suggests it can cause hair regrowth in some men.

The medication contains either 5% or 2% minoxidil. Some evidence suggests the stronger version (5%) is more effective. Other evidence has shown this is no more effective than the 2% version. However, the stronger version may cause more side effects, such as dryness or itchiness in the area it's applied.

Like finasteride, minoxidil usually needs to be used for several months before any effect is seen. The balding process will usually resume if treatment with minoxidil is stopped. Any new hair that regrows will fall out two months after treatment is stopped. Side effects are uncommon.

Female-pattern baldness

Minoxidil is currently the only medicine available to treat female-pattern baldness.

Minoxidil lotion may help hair grow in around one in four women who use it, and it may slow or stop hair loss in other women. In general, women respond better to minoxidil than men. As with men, you need to use minoxidil for several months to see any effect. 

Alopecia areata

There is no completely effective treatment for alopecia areata. However, in most cases the hair grows back after about a year without treatment. So "watchful waiting" is sometimes best, particularly if you just have a few small patches of hair loss.

Some treatments for alopecia areata are outlined below.

Corticosteroid injections

Corticosteroids are medicines containing steroids, a type of hormone. They work by suppressing the immune system (the body's natural defence against infection and illness). This is useful in alopecia areata because the condition is thought to be caused by the immune system damaging the hair follicles.

Corticosteroid injections appear to be the most effective treatment for small patches of alopecia. As well as your scalp, they can also be used in other areas, such as your eyebrows.

A corticosteroid solution is injected several times into the bald areas of skin. This stops your immune system from attacking the hair follicles. It can also stimulate hair to grow again in those areas after about four weeks. The injections are repeated every few weeks. Alopecia may return when the injections are stopped.

Side effects of corticosteroid injections include pain at the injection site and thinning of your skin (atrophy).

Topical corticosteroids

Topical corticosteroids (creams and ointments) are widely prescribed for treating alopecia areata, but their long-term benefits are not known.

They are usually prescribed for a three-month period. Possible corticosteroids include:

  • betamethasone 
  • hydrocortisone
  • mometasone

These are available as a lotion, gel or foam depending on which you find easiest to use. However, they cannot be used on your face, for example on your beard or eyebrows.

Possible side effects of corticosteroids include thinning of your skin and acne.

Corticosteroids tablets aren't recommended because of the risk of serious side effects.

Minoxidil lotion

Minoxidil lotion is applied to the scalp and can stimulate hair regrowth after about 12 weeks. However, it can take up to a year for the medication to take full effect.

Minoxidil is licensed to treat both male- and female-pattern baldness, but is not specifically licensed to treat alopecia areata. This means it hasn't undergone thorough medical testing for this purpose.

Minoxidil is not recommended for those under 18 years old. It's not available on the NHS, but can be prescribed privately or bought over the counter.

Immunotherapy

Immunotherapy may be an effective form of treatment for extensive or total hair loss, although fewer than half of those who are treated will see worthwhile hair regrowth.

A chemical solution called diphencyprone (DPCP) is applied to a small area of bald skin. This is repeated every week using a stronger dose of DPCP each time. The solution eventually causes an allergic reaction and the skin develops mild eczema (dermatitis). In some cases, this results in hair regrowth after about 12 weeks.

A possible side effect of immunotherapy is a severe skin reaction. This can be avoided by increasing the DPCP concentration gradually. Less common side effects include a rash and patchy-coloured skin (vitiligo). In many cases, the hair falls out again when treatment is stopped.

Immunotherapy is only available in specialised centres. You'll need to visit the centre once a week for several months. After DPCP has been applied, you'll need to wear a hat or scarf over the treated area for 24 hours because light can interact with the chemical.

Dithranol cream

Similar to immunotherapy, dithranol cream is applied regularly to the scalp before being washed off. It causes a skin reaction, followed by hair regrowth in some cases.

However, it hasn't been proven that dithranol cream is significantly effective in the long term. It can also cause itchiness and scaling of the skin and can stain the scalp and hair. For these reasons, dithranol is not widely used.

Ultraviolet light treatment

Two to three sessions of light therapy (phototherapy) are given every week in hospital. The skin is exposed to ultraviolet (UVA or UVB) rays. In some cases, before your skin is exposed to UV light you may be given a medicine called psoralen, which makes your skin more sensitive to the light.

The results of light therapy are often poor. The treatment can take up to a year to produce maximum results and responses vary, with a high relapse rate. It's often not a recommended treatment because side effects can include:

  • nausea (feeling sick)
  • pigment changes to the skin
  • an increased risk of skin cancer 

Tattooing

For many people, it's possible to replicate hair with a tattoo. This is known as dermatography and generally produces good long-term results, although it is usually expensive and can only be used to replicate very short hair.

This is usually carried out for eyebrows over a few hourly sessions and can even be used as a treatment for scalp hair loss caused by male-pattern baldness.

Wigs

Wigs can be a useful treatment for people with extensive hair loss. 

Synthetic wigs

The cheapest wigs are made from acrylic and can cost anywhere between £60 and £300.

Acrylic wigs last for six to nine months. They're easier to look after than wigs made of real hair because they don't need styling. However, acrylic wigs can be itchy and hot, and need to be replaced more often than wigs made from real hair.

Read about NHS wigs and fabric supports for information on who is entitled to free wigs and who can get help with costs.

Real hair wigs

Some people prefer the look and feel of wigs made from real hair even though they are more expensive, costing anywhere between £200 and £2,000.

Real hair wigs last for three to four years, but are harder to maintain than synthetic wigs because they may need to be set and styled by a hairdresser and professionally cleaned.

A human hair wig is only available on the NHS if you're allergic to acrylic, or if you have a skin condition made worse by acrylic. You may wish to buy your wig privately.

Read about NHS wigs and fabric supports for more information about how much a human hair wig costs on the NHS.

Alopecia UK also has useful information about synthetic wigs and human hair wigs, including advice about choosing the right wig and how to care for it.

Complementary therapy

Aromatherapy, acupuncture and massage are often used for alopecia, but there isn't enough evidence to support their use as effective treatments.

Hair loss surgery

Most men and women considering hair loss surgery have male-pattern or female-pattern baldness. However, surgery is sometimes suitable for a range of alopecia conditions.

Surgery for hair loss should only be considered after trying less invasive treatments, and it's not usually available on the NHS.  

The success of hair loss surgery depends on the skill of the surgeon, as complications can arise. It's best to speak to your GP for advice before seeking out a surgeon in the private sector.

The main types of hair loss surgery are explained below.

Hair transplant

Under local anaesthetic (painkilling medication), a small piece of scalp (about 1cm wide and 30-35cm long) is removed from an area where there's plenty of hair. The piece of scalp is divided into single hairs or tiny groups of hairs, which are grafted onto areas where there's no hair.

Stitches are not needed to attach the grafts because they are held in place by the clotting (thickening) action of the blood when the hairs are inserted. Fine hairs are placed at the front of the scalp and thicker hairs towards the back in a process called grading. This helps achieve a more natural result. Within six months, the hair should settle and start to regrow.

Hair transplants are carried out over a number of sessions. There should be a break of nine to 12 months between procedures. As with any type of surgery, there is a risk of infection and bleeding, which can lead to hair loss and noticeable scarring.

Hair transplantation isn't provided by the NHS. It can be expensive and take a long time.

Scalp reduction

Scalp reduction involves removing pieces of bald scalp from the crown and the top of the head to move hairy parts of the scalp closer together. This can be done by cutting out loose skin and stitching the scalp back together, or it can be done by tissue expansion.

Tissue expansion is where a balloon is placed underneath the scalp and inflated over several weeks to expand the skin in stages. The balloon is then removed and the excess skin is cut out.

Scalp reductions are not suitable for hair loss at the front of the scalp because it can cause scarring. There is also the risk of infection in the area.

Scalp reduction isn't usually used for male-pattern baldness, but it's available on the NHS to people with scarring alopecia. Surgery should only be carried out after any underlying conditions have cleared up.

Artificial hair

Artificial hair implantation is marketed as a treatment for male-pattern baldness. It involves implanting synthetic fibres into the scalp under local anaesthetic. The technique is not available on the NHS.

Artificial hair implantation carries serious risks of infection and scarring, but clinics may be reluctant to inform people of the possible complications to avoid losing potential clients.

Artificial hair implantation isn't recommended by dermatologists because of the risk of complications such as:

  • infection
  • scarring
  • synthetic fibres falling out

People considering hair loss surgery should explore more established treatments, such as hair transplantation and scalp reduction, because the advantages and disadvantages of these techniques are better understood.

Cloning

The latest research into hair loss treatments is studying hair cell cloning. The technique involves taking small amounts of a person's remaining hair cells, multiplying them, and injecting them into bald areas.

Cloning is intended to treat both male- and female-pattern baldness. However, the science behind the technique is new and more trials are needed before it can be fully assessed.

Emotional support

If you need emotional support following hair loss, you can contact the charity Alopecia UK. An online forum is available where you can talk to other people with alopecia, and a network of support groups exists across the country.

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