Three days without stool may be related to physiological factors and pathological factors (such as: anal fissure, intestinal obstruction, etc.) factors, according to the cause of the targeted treatment, such as general treatment, drug therapy and gastrointestinal decompression therapy. 1. Physiological factors: if the patient usually exists too little food, little water, no exercise, sedentary, bad defecation habits and other factors, it will make the intestinal stimulation is insufficient, intestinal dynamics weakened, resulting in three days of stool did not come out. General treatment can be used, it is recommended that we must eat a regular diet, eat rich vegetables and fruits, drink enough water, more physical exercise to increase intestinal peristalsis, so as to improve the situation of three days without defecation. 2. Anal fissure: If the patient has anal fissure, it is very easy to have painful symptoms during defecation, causing the patient to have fear of defecation, which leads to three days of no bowel movement. You can use medicines such as Ma Ren Lun Bowel Pill for treatment, which can play the effect of laxative, and is conducive to the discharge of stools. 3. Intestinal obstruction: if accompanied by the stopping of gas considerations related to intestinal obstruction, there may be vomiting overnight fasting and other manifestations, with intestinal peristalsis obstruction, foreign body obstruction, intestinal dysfunction and other factors related to the patient three days can not be bowel symptoms. Gastrointestinal decompression can be used for treatment to reduce intestinal tension, which is conducive to improving the blood circulation of the intestinal wall. Effective gastrointestinal decompression on simple intestinal obstruction and paralytic intestinal obstruction can be achieved to lift the purpose of the obstruction, thus improving the situation of three days of no bowel movement. If the patient does not have bowel movement for three days, it is recommended to go to the hospital in time, after a clear diagnosis, targeted treatment.