Why is a 3 1/2 week old pooping several times a day?

3 weeks and a half of the child poop several times a day, may be diarrhea disease, acute appendicitis, other, etc., depending on its comprehensive situation to determine.
1. Diarrhea disease:
(1) infectious diarrhea: can be caused by viral (such as rotavirus) or bacterial (such as Escherichia coli) infections, the course of the disease can appear several times a day to solve the phenomenon of the stool, and the daily habits of defecation compared to the stool frequency increased significantly, often accompanied by a change in the nature of the stool, fever, or vomiting and other symptoms, improve the routine stool examination can assist in the diagnosis.
(2) non-infectious diarrhea: such as bait diarrhea, mostly caused by improper diet, the above phenomenon can occur, the course of the disease usually no fever and other symptoms.
(2) Acute appendicitis: this kind of children in the course of the disease is mostly manifested as abdominal pain, some of the children due to rectal irritation signs may also appear frequent discharge of dilute stools, improve the abdominal ultrasound and indicators of infection and other tests can assist in the diagnosis.
3. other: such as ulcerative colitis, the course of the disease may appear longer or repeated fever diarrhea, often manifested as blood or mucus pus blood stools, can be accompanied by weight loss.
3 weeks and a half of the child poop a few times a day, it is recommended to consult a specialist physician to evaluate the judgment in a timely manner.