I had abortion due to spina bifida. i have hair on my chin. little hair. could that be the reason for birth defect?pls help dr

No: Nature is far from perfect, but fortunately has built in the ability to "self-destruct" pregnancies (have a natural miscarriage) when babies have defects. Because of this, many pregnancies miscarry early. Causes for birth defects are generally uncontrollable. One should not blame oneself, unless a specific drug, medication, or habit is a known cause. Prenatal vitamins prevent some spinal defects.

Spina bifida: I am not aware of any relationship between chin hairs and spina bifida.