I have a 17 month old DS who are still got very little hair. He was born with no hair (except for a really fetching old-man bit right at the back of his head) and 17 months on, it is still not great. Put it this way, I don't have to worry about washing it/getting tugs out of it/his first haircut anytime soon. He has some hair, but you can still clearly see his scalp and what he has is definitely 'wispy'. I know that in the grand scheme of things, I shouldn't be worried but does anyone want to tell me that they went through the same thing and now have an older child with a full head of hair??