above 4 years and still cannot speak a complete sentence

It sounds like your son may have PDD, or a Pervasive Developmental Disorder. This is a little different from autism but has similiar symptoms, but they are different enough to be a seperate diagnosis. The treatments are similar.. medical, environmental and educational support will help your son have the very best potential he can. He doesn't sound too severe from what you said.. maybe everything will be just fine and he's just marching to his own beat right now. Kudos to you for wanting to do the right thing and find out though.. so many people are in denial and it only hurts their children. Best of luck to you.

hi; look up Albert Einstein's story because as a child he had many problems.
try to be patient enjoy all u have with your child
good luck

Would it be worth speaking to your family doctor about getting your son referred to a speech therapist? to help devlope his speech skills.

Seeing a young child go through something like this is never an easy thing. I’m sorry that your son is having trouble with his speech, but it is good that his other behaviors such as listening and eye contact are more normal. Have you ever heard of Hyperbaric Oxygen Therapy? Even if he doesn’t have Autism, it has the potential to make a tremendous difference in his speech. Hyperbaric Oxygen Therapy is a method of treatment where your body receives oxygen at a pressurized level, flooding parts of the body with oxygen where it may not have been previously reaching. More oxygen creates healthier cells, and healthier cells equals healthier tissues and organs! Multiple studies have been done, with many cases showing significant signs of treatment after sessions. I’ve also included a link to a young boy with Austism, Michael Inclan of Tampa Bay Florida. Hyperbaric Oxygen Therapy has really made a difference in his life. I’d love to give you more information if you’re interested.

Michael Inclan and Hyperbarics http://bit.ly/oQ0Z86

Hyperbaric Oxygen Therapy http://bit.ly/q83wIW

My son is four. Thinking of going for a Naturopathic doctor. His attention span is poor and eye contact as well. I would appreciate if you could provide more information.