Diarrhea in 8-month-old babies is related to enteritis, poor digestion, cold abdomen and other factors. It is best not to blindly take gentamicin, need to clarify the cause. 8 months baby diarrhea may be related to enteritis, indigestion and abdominal cold, no clear cause is best not to blindly use gentamicin. Gentamicin is ototoxic and can cause hearing loss and tinnitus in babies, affecting their hearing development. Therefore, it is not recommended to give gentamicin to babies under 1 year old on their own. If your child is suffering from enteritis, anti-infection treatment is needed and usually cephalosporin antibiotics or azithromycin will be used. If the child’s diarrhea is related to indigestion, the diet needs to be adjusted to give the child some light and easy-to-digest food, and antibiotics are not needed in this case. If it is a cold abdomen that causes diarrhea in 8-month-old babies, you must pay attention to keep warm and avoid getting cold again. It is recommended to take the child to the hospital to check the stool, synthesize the child’s specific situation, reasonable treatment.