Hair Metrics Brief: What Causes Hair Loss in Men?

We’re sorry to say, but most men will experience thinning hair or hair loss by the time they reach their mid-thirties as the result of male pattern baldness, also known as androgenetic alopecia. Genetic causes are mostly to blame, which impact the size of the hair follicles and more specifically their sensitivity to the presence of dihydrotestosterone, or DHT (a form of testosterone or androgen). The actions of DHT binding at follicle receptor sites reduce the size of hair follicles, essentially suffocating hair growth most commonly on the crown of the head. Fortunately, some follicles are resistant to the effects of DHT, and while those follicles are often located on the back and side of the head, these are the follicles that are successfully transplanted in hair restoration surgery.

Not all hair loss falls into this pattern, and some symptoms may require serious evaluation. If your hair loss is diffuse, patchy, or happens over a short period of time, it may be due to a medication or other ingested substance, a medical condition, hormonal changes, vitamin deficiencies, or excessive stress or psychological trauma. If this describes what your are experiencing, contact your physician at your earliest convenience.

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