Hair loss affects approximately 50% of men by age 50 — yet despite its prevalence, many men don't fully understand why it happens or what can be done about it. This guide covers the science of hair loss, how it progresses, and the full range of treatment options available today.
Why Does Hair Loss Happen?
The most common form of hair loss in men is androgenetic alopecia — commonly called male pattern baldness. It's genetic in origin and driven by sensitivity to a hormone called dihydrotestosterone (DHT).
DHT is a byproduct of testosterone. In men with a genetic predisposition, hair follicles on the scalp are sensitive to DHT. Over time, DHT causes these follicles to shrink — a process called miniaturisation. Each successive hair growth cycle produces a thinner, shorter hair until eventually the follicle stops producing hair entirely.
Importantly, not all follicles are equally sensitive. The follicles on the back and sides of the scalp (the "safe donor zone") are genetically resistant to DHT — which is why men lose hair on top but retain it at the sides.
Other Causes of Hair Loss
While androgenetic alopecia accounts for the majority of cases, other causes include:
Telogen effluvium: Diffuse shedding triggered by physical or emotional stress, illness, surgery or nutritional deficiency. Usually temporary and reversible once the underlying cause is addressed.
Alopecia areata: An autoimmune condition causing patchy hair loss. Can affect the scalp, beard, eyebrows or entire body.
Traction alopecia: Hair loss caused by prolonged tension — common in men who wear tight hairstyles or headgear.
Nutritional deficiencies: Deficiencies in iron, vitamin D, zinc or biotin can contribute to hair thinning. Blood tests can identify these.
Thyroid conditions: Both hypothyroidism and hyperthyroidism can cause hair loss.
How Hair Loss Progresses
Male pattern baldness typically follows a predictable pattern described by the Norwood Scale — seven stages from minimal recession to extensive baldness.
The rate of progression varies enormously between individuals. Some men lose hair rapidly in their 20s; others experience gradual thinning over decades. Genetics play the dominant role, but stress, nutrition, sleep quality and scalp health all influence progression.
Non-Surgical Treatment Options
For men in the early stages of hair loss (Norwood I–III), several non-surgical treatments can slow or partially reverse thinning:
Minoxidil: Available as a topical foam or solution, applied daily to the scalp. It works by extending the anagen (growth) phase of the hair cycle. Effective for approximately 60% of users. Available without prescription.
Finasteride: An oral medication (1mg daily) that blocks the enzyme responsible for converting testosterone to DHT. Reduces DHT levels by approximately 70%, slowing miniaturisation. Requires a prescription. Not suitable for all patients — discuss with your doctor.
PRP (Platelet-Rich Plasma) Therapy: Injections of concentrated platelets from your own blood into the scalp. Growth factors in PRP stimulate follicle activity. Typically requires 3–6 sessions annually.
Exosome Therapy: A newer regenerative treatment using stem cell-derived exosomes to stimulate follicle regeneration. More growth factors than PRP, fewer sessions required.
Low-Level Laser Therapy (LLLT): Devices using red light to stimulate cellular activity in hair follicles. Evidence is modest but growing.
When Is Hair Transplant Surgery Appropriate?
Hair transplant surgery is appropriate when:
- Hair loss is in the mid-to-advanced stages (Norwood III–VII)
- The area of thinning is too large for non-surgical treatments to meaningfully address
- The donor area has sufficient density to support a procedure
- The patient has realistic expectations about outcomes
Surgery doesn't stop further hair loss — it addresses existing baldness. Most surgeons recommend combining transplantation with medical therapy (minoxidil and/or finasteride) to protect native hair going forward.
Getting an Assessment
The first step is understanding where you are in the progression — your Norwood stage, donor density, and the likely trajectory of your hair loss over the coming years.
Send photographs of your hairline, crown and donor area via WhatsApp. Dr. Hamid Aydın's team will provide a full assessment and treatment recommendation within 24 hours — free of charge.
Understanding your hair loss is the first step. Free assessment via WhatsApp — reply within 24 hours.