Acquired hearing loss is a hearing loss that appears after birth can occur at any time in one's life as a result of an illness or injury. As Audiology Information Series More information on this topic can be found in our Audiology Information Series as Ear infections (very common in children) , Medications that are toxic to the ear , Meningitis , Measles , Encephalitis , Chicken pox , Flu , Mumps , Head injury ,Noise exposure