Where has all the hair gone?

Alex's hair has been slowly falling out. I can't remember, is this something that normally happens around five months of age? He had some nice thick soft curls, and now it is a lot thinner and scarce. He is still as cute as ever!

Oh, ok, the professionals have spoken!

Newborn hair loss is perfectly normal and nothing to worry about. Babies often lose their hair during the first six months. This kind of hair loss is called telogen effluvium. Most babies will have two crops of hair in the first year. In some, that first growth falls out before the second appears and it looks like they are going bald (sometimes this even happens before birth, and the babies are born bald). In others, the second growth comes in while the first is leaving and it is hardly noticed.