I ask the peditrician and he said " we will just keep a eye on it " which gave me no closure..Yes It runs in my husbands family , but come on he is only 2 ..I really noticed it when we had his head shaved ..He lloks like Bruce Willis from Hudson Hawl or Die Hard , it's shaved and then on eachside a ball of hair is missing creating kinda like a island in the middle ...What can i get a correct answer from the doc ?? if he says it's genetic that will suck but at least i know it's nothing serious...

Not to be rude, but I would make the assumption you are overreacting. He is most likely simply maturing, and losing hair that grew during when he was still more "developing" than he was "growing"; so to speak. For a toddler to have a "receding" hairline seems quite infeasible. Receding hairline is a symptom of Male Pattern Baldness. That is the most common and overwhelming cause of such hair loss. Hair loss from other conditions, diseases, syndromes, etc, do not cause such "pattern baldness" but rather typically cause random loss of hair in splotches, or simply generalized thinning of the hair.Your doctor is right, simply keep on eye on it