Symptoms of deafness and hearing loss can manifest themselves differently in each child. An infant’s ability to hear is a very important element, and only on this basis can they learn. They are tested frequently for hearing ability right after birth, which is the most important way to determine if an infant is deaf, but parents or caregivers should still be aware of early warnings. However, individual signs of deafness or developmental problems should not cause concern, but you should contact your child’s doctor immediately if you notice any signs that your baby may be deaf. Signs of deafness in 3-month-old newborns When babies are 3 months old, if they do not respond with surprise to sudden sounds, very loud noises, or if they do not respond to sounds, music, or impressions, this is a sign that they may have a hearing loss or deafness. Infants at this age will also show symptoms such as not moving or waking up to sounds that are very close, or gentle sounds that do not soothe them. Hearing loss may be present if the baby has not yet been able to produce the vowel “O” sound or if the baby is not quiet with familiar sounds. Symptoms at 4-8 months of age When a baby reaches 4-8 months of age, he should be able to turn his eyes or head toward the person or object making the sound that he cannot see. In a quiet atmosphere, babies should also change their expressions or other similar expressions if voices or very loud noises are coming. Signs of hearing loss also include the inability to enjoy sounds such as squeals, crisp bells, or rattles; the inability to imitate sounds at 6 months of age; the inability to speak indistinctly to themselves or adults; and the lack of response to changes in the pitch of sounds. If your baby can only hear certain sounds but not others, or if he or she only notices sounds with vibrations but not when there are only sounds. It’s time to consult your child’s doctor to assess his hearing ability. Symptoms that babies between 9 and 12 months of age may exhibit When babies between 9 and 12 months of age are called by their name, they should respond in a manner similar to an answer. In addition, it is important to be aware that children of this age should be able to pronounce single words like “daddy” or “mommy” if they do not have hearing problems; if they cannot pronounce the first short sound of a word; and if they cannot understand very common phrases such as If the child is unable to produce the first short sound of a word; if the child is unable to understand very common phrases such as “bye”; if the child is unable to respond to commands such as “no” or “come”, the child should consult a specialist to assess whether there is a hearing loss.