Three months baby two days without stool fart stink, some cases do not need special treatment, some cases need timely treatment, such as constipation can be treated with medication, intestinal obstruction need to use surgery and other treatments. Three months of the baby’s gastrointestinal function development than the newborn period perfect, intestinal flora has been relatively fixed, can further decomposition of the nutrients in the milk, if eating less, less food residue, can not be enough to promote the baby every day to complete the defecation, can be manifested as a three-month-old baby two days do not stool fart smell, this situation will not affect the baby’s development, do not have to be a special treatment. If the three months baby two days without stool fart odor, accompanied by the baby’s poor mental state, poor eating, abdominal distension and other manifestations, it should be timely to clarify the existence of congenital megacolon, incomplete intestinal obstruction and other conditions, if necessary, timely enema or surgical and other treatments. Three months baby two days without stool fart odor may also be the existence of constipation, can be given bacillus subtilis bacillus two live bacteria and so on conditioning, corkscrew to promote defecation. If the baby continues to not defecate and accompanied by abnormalities, you should consult a doctor to clarify the cause of the disease, so as not to delay the condition, resulting in adverse consequences. The above drugs should be used according to medical advice.