What causes bad breath in children?
Disease description:
My child has recently developed bad breath, which hasn't improved after brushing teeth. He/she also frequently complains of abdominal bloating during meals. I'm worried something might be wrong with his/her gastrointestinal system. What could be the possible causes?
Doctor's answer (1)
Dr. Zhou Xiaofeng
Bad breath in children can be caused by multiple factors, mainly categorized into physiological and pathological causes.
Poor oral hygiene is the most common cause. If children do not develop good brushing habits, food debris can accumulate in the mouth, and bacteria breaking down this debris may produce unpleasant odors. Saliva helps clean the mouth, and when children have dry mouths with reduced saliva production, bacteria can multiply easily, leading to bad breath. Cavities or gum problems can also cause bad breath because these areas tend to harbor debris and bacteria.
Dental issues such as tooth decay and periodontal disease may cause food particles to remain in cavities or inflamed periodontal tissues, which can then lead to bad breath. Additionally, indigestion might also cause bad breath since food can accumulate and decay in the digestive tract when gastrointestinal function is impaired. Moreover, nasal, throat, or ear infections—such as sinusitis and tonsillitis—may also produce bad breath due to the presence of pus or other secretions.
If a child's bad breath persists, parents are advised to take the child to a hospital for examination to rule out underlying health issues and to consult with a professional dentist or pediatrician to learn about proper oral care techniques and receive treatment if necessary.
