Home > Medical > Hearing management > FAQs 17 December 2008 Are certain children born deaf, or does it happen later? Most hearing impairment is inherited. But of all types of inherited deafness, only one third is present at birth. 0 Ask Hearing Care expert » What is tinnitus and is it caused by exposure to loud noises? Managing tinnitus using mindfulness Most hearing impairment is inherited. But of all types of inherited deafness, only one third is present at birth. Another third starts during childhood and the other third only manifests in adulthood. More in Medical Do cochlear implants give someone normal hearing? More: Hearing managementFAQs SPONSORED: So many prizes! Click through and see our fantastic competitions. advertisement Get a quote Momentum - save up to 35% on healthcare advertisement Read Health24’s Comments Policy Comment on this story 0 comments Add your comment Thank you, your comment has been submitted. Logout Comment 0 characters remaining Share on Facebook Logout Comment 0 characters remaining Share on Facebook Loading comments... Other news Mental health Clinic mum over 'gay conversion' therapy Medical Why you should take Vitamin C this festive season Medical 5 things you didn't know about osteoporosis Medical Doctors too strict about sex after heart attack Sex From she to he – a young man's journey to happiness Medical Avoid getting sick while going on holiday From our sponsors Uncontrolled periodontal disease and diabetes – a collective health risk? Exam stress – a challenge for the whole family Eduloan offers affordable education finance Live healthier Medical bills » GP and money Cut medical bills Medical savings account Medical scheme: what is a self-payment gap? Have you exhausted your day-to-day benefits and moved into your self-payment gap? Here's what it means. Allergy alert » Allergy myths Cold or allergy? Children and allergies Allergy facts vs. fiction Some of the greatest allergy myths and misconceptions can actually be damaging to your health.