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Dr. Chris in Ohio
Dr. Chris in Ohio, Ohio Psychiatric Nurse Practitioner
Category: Mental Health
Satisfied Customers: 20
Experience:  24 years Psych experience. Expert: psych meds, depression, bipolar, anxiety disorders, schizophrenia
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If a couple are looking to have a child and the girl

Resolved Question:

If a couple are looking to have a child and the girl involved in the relationship has a brother with pervasive development disorder - is that hereditary - what is the current scientific opinion? What is the percentage the new couple would get this ? And is it possible to screen genetically to see if the couple could produce a child with these issues ?
Submitted: 8 years ago.
Category: Mental Health
Expert:  Dr. Chris in Ohio replied 8 years ago.

Excellent question truthseeker!

Nothing to worry about.....Unlike both medical and psychiatric conditions which are definitely hereditary, developmental disorders are not. They are essentially caused by external issues/factors such as the age the mother (over 35, or even father over 50) at the time of conception, which may cause a random genetic defect, or something during the birthing process, where perhaps the newborn is oxygen deprieved. Development Disorders may also may be caused by the mother drinking alcohol during her pregnancy (fetal alcohol syndrome), or even heavily smoking.

Don't worry. The baby, when it comes, will have a full and happy life!

Good luck.


Customer: replied 8 years ago.
Thanks for that info. but i just wanted to know why this is not a medical or psychiatric condition and how we know pdds are not hereditary , as well as why evidence says that it tends to run in families with PDDs which have many types such as autism,asbergers and pdd nos etc...?
Expert:  Dr. Chris in Ohio replied 8 years ago.

DDs are not hereditary like cancer, heart disease, depression, or schizophrenia. Most often external causes lead to it. Autism may have some genetic link, but generally it is felt that perhaps some unknown virus or perhaps overuse of vaccines may play into its development.

If the mother to be has more than one DD person in her nuclear/extended family, then be concerned, if not.... don't worry. The baby will be fine.


Customer: replied 8 years ago.
thanks, ***** ***** last clarification - why should one be concerned if there is more than one in entire family etc.-- and if so what are the chances of repetition in the new couple -and what about repetition if none besides the brother of the girl have this pdd-- lastly , are you differentiating between pdd (autism type vs. the other pdd's asbergers, pdd nos etc.) in terms of it being hereditary and why ?
Expert:  Dr. Chris in Ohio replied 8 years ago.

Because if there is more than one, that would be an indicator of a family history or hereditary nature of the DD. Ask about grandparents,aunts, uncles, cousins, second counsins, etc... I bet you will find nothing. This applies to all DDs, even Asbergers, which is a very mild form of autism. With mental illness, 50% of my patients have somebody in their immediate/extended family who also has the disorder.


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