A receding hairline is one of the earliest and most common signs of male pattern hair loss. It usually starts at the temples, gradually forming an M-shape as the hairline moves back, and can begin any time from the late teens onwards.
The main cause is androgenetic alopecia (male pattern hair loss), driven by genetics and the hormone DHT, which slowly shrinks sensitive follicles at the temples and hairline.
It's worth knowing that a maturing hairline is normal and not the same as balding. In the late teens and early twenties, most men's hairlines settle back slightly from the juvenile position. True recession keeps progressing over years, so comparing photos six to twelve months apart is the clearest way to tell them apart.
For a diagnosis and treatment tailored to you, speak to a GP or dermatologist. A free Hair Score is a useful starting point to understand where you stand.
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