There are very many reasons for a bout of colic in the stomach but no bowel movement, and the common diseases are intestinal obstruction, acute cholecystitis, acute gastroenteritis, pelvic disease, etc. If the abdominal pain is heavy during the acute attack period, you need to go to the hospital in time, if the pain is mild you can rest on your own to relieve. Common causes and treatment methods 1, intestinal obstruction: the typical symptom of intestinal obstruction is abdominal bouts of colic, especially complete intestinal obstruction will stop defecation, may be accompanied by vomiting, abdominal distension, nausea. Intestinal obstruction is usually caused by fecal stone embedment, intestinal overlap, colorectal tumor, intestinal torsion, etc. Patients need to consult a doctor immediately, after clear diagnosis of the relevant treatment under the guidance of the doctor, can be used for pain relief, while gastrointestinal decompression, if necessary, through surgery to lift the intestinal obstruction; 2, acute cholecystitis: acute cholecystitis patients can appear in the stomach bouts of colic, commonly right upper abdomen, can be accompanied by jaundice, often after a full meal or greasy diet, usually without bowel movements. The main use of belladonna tablets or atropine for antispasmodic pain relief, together with fasting, rehydration treatment, optional surgery; 3, acute gastroenteritis: dietary irregularities can easily lead to acute gastroenteritis, the patient can appear stomach bouts of colic, commonly in the upper abdomen, usually stomach cramps, may not be accompanied by bowel movements, some patients can be accompanied by nausea and vomiting. The patient can use belladonna tablets to relieve pain, bacterial infections are treated with quinolone antibiotics; 4, pelvic disease: prostate abscess, ovarian cysts, ectopic pregnancy, etc., can lead to abdominal cramps, but not defecation, the need for timely medical treatment, drug and surgical treatment. If the patient cannot be relieved after proper rest and pressure, it is advisable to seek medical attention to clarify the cause and avoid using pain medication on your own to avoid covering up the condition and delaying treatment.