Aesthetics

Male hair loss: when should you see a doctor?

Medically reviewed by Dr Suha Kersh, Co-Founder & Lead Aesthetic Doctor, and Dr Martin Galy, Co-Founder & Director of Wellness & Longevity · Published 12 November 2026 · Last reviewed 12 November 2026

Quick answer: See a doctor if your hair loss is sudden, comes out in clumps or round patches, affects your beard or eyebrows, or comes with an itchy, sore or scaly scalp. Gradual thinning at the temples or crown is usually male pattern hair loss: common and not dangerous, but worth assessing if it worries you.

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Is it normal for men to lose hair?

Losing some hair every day is normal. The NHS says most people shed between 50 and 100 hairs a day, often without noticing [1].

The most common cause of thinning in men is male pattern hair loss, also called androgenetic alopecia. The British Association of Dermatologists (BAD) explains that it comes from a mix of genes and a hormone called dihydrotestosterone (DHT). DHT gradually shrinks sensitive hair follicles, a process called miniaturisation, so each new hair grows finer and shorter until the follicle stops producing hair [2].

Male pattern hair loss usually starts as a receding hairline and thinning on the crown, while the sides and back are spared. It can begin at any age after puberty and tends to progress slowly, over several years to decades. An earlier start may mean faster progression [2].

What are the signs you should see a doctor about hair loss?

The NHS advises seeing a GP if you are worried about your hair loss, and getting a medical opinion on the cause before going to a commercial hair clinic [1]. These signs are a good reason not to wait:

Sudden hair loss, or hair coming out in clumps.
Round, smooth bald patches on the scalp, or patches in the beard or eyebrows. This is the typical pattern of alopecia areata, an autoimmune condition [3].
Scalp symptoms such as itching, burning, soreness, redness or scaling. In male pattern hair loss the scalp usually looks normal, so symptoms point to another cause [2][3].
Hair loss with other changes, such as tiredness, weight change or a recent illness.
Hair loss that affects your mood or confidence. The BAD notes that it can have a real psychological impact, and that this is worth raising with a doctor in its own right [2].

What else causes hair loss in men?

Not all hair loss is male pattern hair loss. The NHS lists illness, stress, cancer treatment, weight loss and iron deficiency as causes of temporary hair loss, which often grows back once the cause settles [1].

Alopecia areata is different again. The immune system attacks the hair follicle, causing sudden, usually coin-sized patches. It has been linked with thyroid disease, vitiligo and type 1 diabetes. The BAD says around 4 in 5 people see complete regrowth within a year without treatment, depending on how much hair is lost at the start [3].

Because these causes are managed differently, the first step is always an accurate assessment, not a treatment.

What happens at a hair loss assessment?

A doctor will ask when the hair loss started, how fast it is changing, your family history, your general health and any medicines you take. They will examine the pattern of loss and the scalp itself. Male pattern hair loss is usually diagnosed from this history and examination alone [2]. If something else may be contributing, the doctor may suggest further tests [3].

At 23MD, hair concerns start with a doctor-led consultation. Our hair loss page explains how we assess the scalp and plan care.

What treatments can help male pattern hair loss?

There is no cure for male pattern hair loss, but treatment can slow it down and sometimes improve density [2].

Licensed medicines. There are two licensed treatments: a scalp lotion or foam, and a prescription tablet. Both need months of use before any benefit shows (6 to 14 months), and both only work for as long as they are used. The tablet can cause lower libido or erectile problems in around 2% of men [2]. Whether a medicine suits you is a conversation for your doctor.

Regenerative treatments. Platelet-rich plasma (PRP) uses growth factors concentrated from your own blood, injected into the scalp. A 2022 meta-analysis of 30 studies (687 patients) found PRP increased hair density and thickness [4]. A 2023 meta-analysis of 9 randomised trials (238 patients) found higher hair density than placebo at 3 and 6 months, but no clear difference in hair count or hair diameter [5]. The BAD calls the evidence limited and the benefit unpredictable [2].

Polynucleotides are a newer option. One prospective study of 28 people with pattern hair loss reported improved hair density and diameter after four treatments [6]. It had no control group, so the evidence is early.

Low-level light therapy. Caps, combs and panels that shine low-level laser or LED light on the scalp are widely sold. A 2017 meta-analysis found low-level laser light more effective than placebo for hair growth in men [7]. A 2024 meta-analysis of 38 studies (3,098 patients) found better hair density with laser or LED light, though results varied widely between studies [8]. The BAD says more research is needed [2]. 23MD does not currently offer light therapy for hair.

Other options. Hair transplants (private only in the UK), hairpieces and camouflage fibres help some men [2]. Protecting thinning areas from the sun matters too [2].

Option	What it does	Strength of evidence	At 23MD
Licensed medicines	Slow loss; may help regrowth while used	Strongest; licensed	Discussed at consultation
PRP	Growth factors from your own blood	Moderate; mixed trial results	Dubai only
Polynucleotides	Support the scalp tissue around the follicle	Early; small studies	London and Dubai
Hair transplant	Moves follicles from the back and sides	Established surgery	Not offered
Low-level light (laser or LED)	Red light on the scalp, usually home devices	Moderate; results vary widely	Not currently offered

Is male hair loss linked to testosterone?

The hormone behind male pattern hair loss is DHT acting on follicles that are genetically sensitive to it [2]. Thinning hair on its own is not a test for your testosterone level. If you also notice low energy, low libido or mood changes, our guide to low testosterone symptoms explains when a blood test makes sense. For the wider picture of how hormones affect men's skin and hair, see aesthetic treatments for men.

The 23MD view

Most men who come to us about their hair want to know two things: is this normal, and is it worth doing anything about it now. We always answer the first question before the second. That means a proper look at the scalp and the pattern of loss, and ruling out anything that needs medical care first. If it is male pattern hair loss, we are honest that no treatment reverses it, and that the earlier it is managed, the more hair there is to keep. Regenerative treatments such as polynucleotides have a place within a plan, but we do not present them as a substitute for the licensed medical options.

Who this is for, and who it isn't for

This article is for men noticing a receding hairline, thinning on the crown or more hair on the pillow, and anyone wondering whether a change in their hair needs a doctor.

It isn't a substitute for a medical assessment. If you have sudden or patchy hair loss, a painful or inflamed scalp, or feel unwell, see your GP or a doctor first. Regenerative scalp treatments are not suitable for everyone, results vary from person to person, and your doctor will talk through the benefits and risks before any treatment.

Frequently asked questions

How much hair loss is normal for a man?

Shedding 50 to 100 hairs a day is normal, according to the NHS [1]. Noticeable thinning, a receding hairline or patches are worth discussing with a doctor.

Can stress make men lose hair?

Yes. The NHS lists stress, along with illness and weight loss, as a cause of temporary hair loss that often grows back [1].

Does male pattern baldness get worse over time?

Usually, yes, but slowly. The BAD says it tends to progress over several years to decades, and faster when it starts younger [2].

Can hair grow back after male pattern hair loss?

Follicles that have fully stopped producing hair do not usually recover. Treatment aims to slow loss and support the hair that remains, which is why earlier assessment helps [2].

Does PRP work for male hair loss?

PRP has shown higher hair density than placebo in some trials, but results are mixed and the BAD describes the benefit as unpredictable [2][5]. At 23MD, PRP is available in Dubai only.

Should men have their testosterone or other blood tests checked before hair or cosmetic treatment?

Not always. Typical male pattern hair loss is usually diagnosed from the history and examination [2], and thinning hair alone is not a reason to test testosterone. Blood tests are worth considering if the pattern is unusual or you also have symptoms such as tiredness, low drive or weight change, which can point to causes such as iron deficiency or a hormone problem [1][3]. Your doctor will advise at consultation.

Is a hair loss consultation the same as a trichologist appointment?

No. At 23MD, your consultation is with a doctor, who can assess the scalp, consider medical causes and discuss licensed and regenerative options.

Talk to a 23MD doctor

If you'd like a doctor to look at your hair and scalp, our teams in London and Dubai can help. A consultation that includes treatment typically lasts 45 to 60 minutes.

London23 Elystan Street, Chelsea, London SW3 3NTMessage our London team on WhatsApp
DubaiThe Court Residence, 39B Street, Jumeirah 1, DubaiMessage our Dubai team on WhatsApp

23MD is a doctor-led clinic in Chelsea, London (since 2015) and Jumeirah 1, Dubai (since 2023).