Hair loss is progressive and this man shows why. He had a hair transplant 15 years ago in the frontal area (marked in the photo as front), and he lost hair behind the hair transplant. He is now 49, so he was 36 when he had his hair transplant. Had he been 25, it is likely that he would have lost it faster than 15 years, and if his final balding pattern was not defined, then he might have lost far more hair at 25. At the age of 36, hair loss usually slows down and the hair loss patterns are more stable.