What should you know about hereditary male pattern baldness?

In androgenetic alopecia, susceptible hair follicles gradually become smaller under the influence of inherited biology and androgens. Individual hairs may grow finer and for less time before shedding. The hairline can recede, the crown can look thinner, or both patterns can appear together. The change is usually gradual, but the timing and extent vary between people.

A similar appearance can follow thyroid problems, low iron, illness, medication changes, scalp inflammation or physical stress. Sudden loss, broken hairs, bald patches or scalp symptoms therefore deserve an examination rather than an assumption that the cause is hereditary. [Male Pattern Hair Loss](/conditions/androgenetic-alopecia/) provides condition-focused information.

Photograph the hairline and crown in consistent lighting so changes are easier to discuss. Avoid tight hairstyles, repeated high heat and aggressive chemical processing if the scalp feels tender. A clinician can examine the scalp, review family history and decide whether blood tests or another evaluation is appropriate.

Treatment discussions may include [Finasteride Treatment](/treatments/hair-restoration/finasteride-therapy/), topical approaches, [Laser Cap Therapy For Hair](/treatments/hair-restoration/low-level-laser-therapy-for-hair/) or surgery such as [FUE Hair Transplant](/treatments/hair-restoration/fue-hair-transplant/) and [Hair Transplant](/treatments/hair-restoration/hair-transplant/). Each has eligibility, maintenance and side-effect considerations.

Book an assessment for noticeable or persistent [Hair Loss](/symptoms/hair-loss/), [Thinning Hair](/symptoms/hair-thinning/) or a [Receding Hairline](/symptoms/receding-hairline/). Seek prompt review if loss is sudden, patchy, painful, itchy, scaly, associated with redness, or accompanied by eyebrow loss or other symptoms. Early identification matters because some causes can damage follicles or require different treatment.

Does my pattern fit androgenetic alopecia? What other causes should be excluded? Which treatment matches my goals and medical history? Would treatment need to continue to maintain regrowth? What scalp changes should prompt an earlier review?