A 9-year-old child who always shits his pants can be caused by acute diarrhea, and also by neurological abnormalities or psychological disorders. If there is acute diarrhea, it is easy to have the phenomenon of not being able to go to the toilet in time. Acute diarrhea is often caused by bacterial infection, usually need to pay attention to dietary hygiene, avoid cold food. You can use medication, including antibiotics such as amoxicillin. Montelukast can also be used. In addition, if there is a neurodevelopmental abnormality, there may be an inability to control the anal sphincter, and appropriate brain tests need to be performed. This phenomenon may also occur in the presence of psychological problems, which may require psychological counseling. If a child has frequent pants pulling, go to the hospital in time for examination, and use the above medications as prescribed by the doctor.