question-icon

What causes congenital deafness?

default
Posted on Wed, 18 Mar 2015
Question: My husbands mother and father is deaf and unable to speak, but he doesn't have any issue..Will it affect our kids
doctor
Answered by Dr. Abubakar Siddiqh (22 minutes later)
Brief Answer:
Possible but not commonly seen.

Detailed Answer:

Hi,

I had gone through your question and understand your concerns that your parents-in-law are having deafness.


Congenital deafness could be genetic, non genetic (syndrome) or due to infections. Some syndromes can show in future generations.


It can be diagnosed by detailed history, detailed ent examination, genetic tests and special tests (audiometry).


Sense of hearing is very important in developing speech and vocabulary. In syndromes, where inner ear mechanisms are absent, restoring hearing is a difficult task.


I suggest you to consult ENT surgeon, get detailed examination of your parents-in-law to know the cause.


Hope this answers your question, if you have additional questions or follow up questions then please do not hesitate in writing to us. I will be happy to answer your questions.

Wishing you good health.
Above answer was peer-reviewed by : Dr. Pradeep Vitta
doctor
default
Follow up: Dr. Abubakar Siddiqh (1 hour later)
Mother in laws deafness is genetical, but father in laws is not.. is ther any way genetically We can check whether m'y gene regarding hearing is mutant
doctor
Answered by Dr. Abubakar Siddiqh (23 minutes later)
Brief Answer:
Molecular genetic testing.

Detailed Answer:

Hello again,


Thanks for considering my answer and for your follow up.


It is determined that you and your partner carry the silent (recessive) gene which causes a hearing loss, then each of the children resulting with that partner have a 2 in 3 (66%) chance of also carrying that same gene.


There are many genes that are involved in hearing. Sometimes, a gene does not form in the expected manner. This is called a mutation. Some mutations run in families- more than one person (familial, runs in families), If only one person in the family has hearing loss-(sporadic). That is, it does not run in the family.


About 70% of all mutations causing hearing loss are non-syndromic. This means that the person does not have any other symptoms. About 30% are syndromic- person has other symptoms besides hearing loss. For example, some people with hearing loss are also blind.


Kindly discuss with gynecologist/ent surgeon about screening audiometry, blood tests and genetic testing.


Molecular genetic testing - Testing that involves the analysis of DNA, either through linkage analysis, sequencing, or one of several methods of mutation detection.


Hope, I have answered your query.


Take care.
Above answer was peer-reviewed by : Dr. Vaishalee Punj
doctor
Answered by
Dr.
Dr. Abubakar Siddiqh

ENT Specialist

Practicing since :1994

Answered : 2038 Questions

premium_optimized

The User accepted the expert's answer

Share on

Get personalised answers from verified doctor in minutes across 80+ specialties

160 Doctors Online

By proceeding, I accept the Terms and Conditions

HCM Blog Instant Access to Doctors
HCM Blog Questions Answered
HCM Blog Satisfaction
What causes congenital deafness?

Brief Answer: Possible but not commonly seen. Detailed Answer: Hi, I had gone through your question and understand your concerns that your parents-in-law are having deafness. Congenital deafness could be genetic, non genetic (syndrome) or due to infections. Some syndromes can show in future generations. It can be diagnosed by detailed history, detailed ent examination, genetic tests and special tests (audiometry). Sense of hearing is very important in developing speech and vocabulary. In syndromes, where inner ear mechanisms are absent, restoring hearing is a difficult task. I suggest you to consult ENT surgeon, get detailed examination of your parents-in-law to know the cause. Hope this answers your question, if you have additional questions or follow up questions then please do not hesitate in writing to us. I will be happy to answer your questions. Wishing you good health.