I am 22 and I have noticed over the past two years my hairline changing into a widows peak, but the rest of my hair remains as thick as ever. I am genetically susceptible to balding as I have two uncles either side of the family (one totally bald and the other started thinning around the age of 40)
But when I look through family photos I notice that my hairline most resembles that of my late grandfather (who ironically I am named after) in his mid twenties and he had the exact same hairline. but the thing which confuses me is that the temple recession is much deeper than with what you describe as a mature hairline (as is mine) and he kept his hair until his mid sixties which he rapidly lost due to cancer.
So I suppose what I am asking is whether MPB can occur to an extent during early life then pick later on in life. Or whether there are varying degrees of a ‘mature hairline’
Generally male pattern balding (MPB), otherwise known as androgenic alopecia (AGA), has varying degrees of hair loss. It can start as early as your puberty years and progress into your later years. Your grandfather’s rapid hair loss as you described is likely not related to MPB or AGA, as it was more likely related to his cancer. If you are concerned about hair loss, you should consider a miniaturization study, which is a microscopic examination of the state of the health of your hair. We do not always match the hair loss of a relative (hairline for hairline), but the trend can be anticipated.