4. There Is No One Definitive Cause
When it comes to microcephaly, there is no exact cause-effect correlation cast in stone. There is no single cause, rather only a number of common causes that make it likely to occur. These are the main ones: Infections occurring during pregnancy. The main ones are toxoplasmosis (caused by a parasite found in undercooked meat), Campylobacter pylori, herpes, rubella, syphilis, cytomegalovirus, HIV, and Zika. Of these, the zika virus is usually the main cause for grave concern as it can lead not only to this condition but a host of others. Genetic reasons, such as abnormalities due to Down’s syndrome.
A traumatic injury to the brain during pregnancy, or soon after the baby is born. If the fetus was severely malnourished, such as in cases of war, famine, and situations of dire deprivation. If the fetus was exposed to toxic substances examples include alcohol, toxic metals such as mercury, smoking, and radiation.