Hair loss conditions Mostly affects men
Losing your hair in your 20s
Noticing hair loss in your twenties is more common than it feels, and it is usually early male pattern hair loss. It can knock your confidence, and that is a fair reason to look into it. Getting a proper assessment early means you can make an informed choice while there is more hair to keep, whether that is treatment, a change of style, or deciding to let it go.
What is hair loss in your 20s?
The British Association of Dermatologists says male pattern hair loss can affect men of any age, and for many it starts in the late teens or twenties, usually at the temples or the crown. It is driven by genes and the hormone DHT, and it is not caused by anything you did.
Why early matters. Published clinical guidance notes that pattern hair loss in young men often progresses quickly. Medicines for hair loss work by slowing the process in follicles that are still producing hair. The leaflet for the licensed topical minoxidil also says that men who are younger, who have been losing hair for a short time, or who have a small area of loss are likely to see the best results. That does not mean you must start treatment, but it does mean that waiting several years to decide closes some doors.
Why seeing a doctor matters. Not all hair loss in young men is pattern loss. Shedding a few months after illness or stress (telogen effluvium), patchy loss from alopecia areata, and thinning linked to low iron or thyroid problems can all look similar at first and need different approaches. A doctor can also check that a medicine is safe for you and explain its side effects honestly, including the MHRA warnings that apply to finasteride.
The emotional side. The BAD notes that pattern hair loss can lead to lower self-esteem and body image concerns, and it can feel especially unfair when friends still have full heads of hair. Those feelings are real and common. Talking about it helps: the NHS suggests your GP can refer you for counselling, and Alopecia UK offers information and peer support. If low mood is building, or you are having thoughts of harming yourself, please talk to your GP, or call Samaritans free at any time on 116 123.
Under 18? WMG Meds only treats adults aged 18 or over. Hair loss medicines such as finasteride are not licensed for anyone under 18, and the UK product information says finasteride should not be used in children. Please see your GP, who can examine you and refer you to a dermatologist if needed.
Signs to look for
- Temples receding further than your friends' or than a few years ago
- Thinning or a widening whorl at the crown
- Hair looking finer and less dense when wet or under bright light
- Close relatives who lost their hair young
- Gradual change rather than sudden shedding
What causes it
Early male pattern hair loss
The most common cause in men in their twenties. Genetic, driven by DHT, and often more noticeable at the front or crown.
Telogen effluvium
Heavy shedding around three months after illness, surgery, stress or crash dieting. Usually settles within 3 to 6 months.
Alopecia areata
An autoimmune condition causing smooth round patches. Not treated by WMG Meds.
Iron deficiency or thyroid problems
Both can thin the hair and can be checked with a blood test.
Traction
Tight buns, braids or extensions can pull hair out along the hairline over time.
How it is diagnosed
A doctor diagnoses early pattern hair loss from your history (when it started, how fast it is changing, family history) and the pattern on your scalp. Blood tests are not routinely needed when the pattern is typical, but they are sensible if you are shedding heavily, thinning all over, or have other symptoms such as tiredness or weight change.
In an online assessment, the doctor relies on your answers and photos, so be as accurate as you can. If anything suggests a cause other than pattern hair loss, the right next step is your GP or a dermatologist.
Treatment options
Every option below has trade-offs, and choosing not to treat is a reasonable decision too. Medicines are only prescribed after a doctor has reviewed your history and confirmed they are suitable for you.
What to expect
Treatment is a long game. The NHS says you can expect to see some improvement with finasteride after 3 to 6 months; the BAD says up to 14 months may be needed. Topical minoxidil needs at least 2 months before new growth might appear, and some people shed more in the first few weeks. For most young men the realistic goal is to hold on to the hair you have; some see some thickening, but results vary and nothing is guaranteed.
Starting in your twenties also means thinking about the long term: treatment only works while you keep using it. Our pages on whether finasteride is safe long term and finasteride and trying for a baby answer the questions young men ask most. If you are not sure what an online consultation involves, see what happens in an online hair loss consultation.
When to see a doctor promptly
See your GP soon, rather than waiting or self-treating, if you notice any of these:
- Low mood, anxiety or thoughts of self-harm, whether linked to hair loss or to a medicine you are taking: see your GP, or call Samaritans on 116 123
- Sudden hair loss or hair coming out in clumps
- Round bald patches, or loss of eyebrow, beard or body hair
- A red, scaly, painful or scarred scalp
- Hair loss alongside weight loss, tiredness or other new symptoms
- Hair loss in anyone under 18: see a GP
How WMG Meds can help
WMG Meds treats adults aged 18 and over who live in the UK. You complete an online assessment, and a GMC-registered doctor reviews it and decides whether treatment is clinically appropriate. If it is, they talk you through the options, including the MHRA safety warnings for finasteride and the off-label status of any off-label medicine, and there are follow-up reviews so you are not left on your own with it.
If you are under 18, we cannot prescribe for you: please see your GP. And if your answers suggest something other than pattern hair loss, or that your mood needs attention first, we will say so plainly. If you are 18 or over and want to understand your options early, you can start the free online assessment or ask us a question first.
Frequently asked questions
Is it normal to lose hair in your twenties?
It is common. The BAD says male pattern hair loss can affect men of any age, and for many it starts in their late teens or twenties. Shedding after illness or stress is also common at this age and usually settles, so it is worth getting it checked rather than assuming.
Am I too young for finasteride?
Finasteride 1 mg is for adult men; it is not licensed for anyone under 18. At 18 or over, age alone is not a barrier, but a doctor will consider your history, including any past depression, because of the MHRA warnings about mood and sexual side effects.
Should I wait and see, or act now?
There is no rush to decide in a week, but medicines work by slowing loss in follicles that are still active, and the licensed minoxidil leaflet says people who have been losing hair for a short time tend to do best. Taking photos now and getting an assessment gives you the facts to decide either way.
Can I get a hair transplant in my twenties?
Some clinics will, but published guidance advises trying medical treatment for at least a year first in young men, because loss often progresses quickly and surgery done too early can leave an unnatural result as the hair around it continues to thin.
Hair loss is really getting me down. What can I do?
You are not alone, and it is worth talking about. Your GP can refer you for counselling, and Alopecia UK offers information and peer support. If you are struggling or having thoughts of harming yourself, call Samaritans free at any time on 116 123, or contact your GP or NHS 111.
Sources
- British Association of Dermatologists: Hair loss, male pattern (androgenetic alopecia), patient information (June 2024)
- Goldin J, Zito PM, Raggio BS. Hair Transplantation. StatPearls, NCBI Bookshelf (updated August 2025)
- MHRA Drug Safety Update: Finasteride, reminder of the risk of psychiatric side effects and of sexual side effects (29 April 2024)
- Regaine for Men Extra Strength Scalp Solution 5%: Patient Information Leaflet (eMC)
- NHS: Hair loss (emotional support)
Facts checked against these sources on 4 October 2026. This page is general information, not a diagnosis. Read our editorial policy.