Non-hereditary congenital hearing loss
In about 1 in 4 cases of hearing loss there is a non-genetic cause that can be identified.
Non-genetic hearing loss is most often caused by illness or trauma before birth or during the birth process, but also maternal exposure to different types of drugs and medications may cause non-hereditary congenital hearing loss – especially in the early stages of pregnancy.
Most common causes of non-hereditary hearing loss:
- Maternal infections, such as rubella/measles, cytomegalovirus, or herpes simplex virus
- Low birth weight
- Birth injuries
- Toxins including drugs and alcohol consumed by the mother during pregnancy
- Complications associated with the Rh factor in the blood/jaundice
- Maternal diabetes