Dr Adam Friedmann, of Stratum Dermatology Clinics, also commented on Bill Bailey’s hair.
“Looking at Bill Bailey, it is clear that he suffers from male pattern baldness, which is by far the most common cause of hair loss in men,” he said.
“This condition is also referred to as androgenetic alopecia. Although scientists are not completely certain what determines who gets male pattern hair loss, we do know there is a genetic component to the condition that can be inherited from either parent’s side of the family.
“Male pattern hair loss is identified by the hair it affects. In male pattern baldness, hair on the top of the head is affected, whereas hair on the back and sides of the scalp is spared.