Pediatric drooling may be related to physiological factors, such as teething, but also may be related to pathological factors, such as oral inflammation, etc., the specific analysis is as follows: 1. physiological factors: children in teething may lead to increased salivary secretion, so it is too late to swallow will have the symptom of drooling, this does not need special treatment, and so the teeth will improve after growing. 2. Pathological factors: pediatric if the above symptoms cycle is not long, and in a specific period of time will appear, may be due to oral herpes or ulcers caused by pathological factors, but also accompanied by crying, refusal to eat, pain and other adverse reactions. Pediatric drooling may also have other reasons, it is recommended to go to the hospital in time for relevant examinations, clear causes after active symptomatic treatment.