Small abdominal distension should be given appropriate treatment according to the appropriate cause, not simply say what medication to take. Common causes include appendicitis, bacterial cystitis, intestinal obstruction and pelvic inflammatory disease. Commonly used treatments include general treatment, physical therapy, medication and surgery. 1. Appendicitis: no matter acute appendicitis or chronic appendicitis, once diagnosed, the appendix should be surgically removed as soon as possible, and at the same time, medication is needed to fight infection and symptomatic treatment. Simple acute appendicitis, can be appropriate use of antibiotics such as ceftriaxone for anti-infection treatment. 2. Bacterial cystitis: bed rest, drink more water, avoid stimulating food. Hot water sitz bath can improve perineal blood circulation and reduce symptoms. Alkaline drugs such as sodium bicarbonate can be used to reduce the acidity of urine and relieve bladder spasm; antibiotics such as levofloxacin can be used for anti-infective treatment. 3. Bowel obstruction: fasting and water fasting, gastrointestinal decompression, use of saline, potassium chloride injection to correct water and electrolytic disorders; antibiotics such as cefotaxime sodium to prevent and treat infection. Serious cases should be treated with timely surgery, such as adhesion release surgery, intestinal resection anastomosis. 4. Pelvic inflammatory disease: Pelvic inflammatory disease can also appear small abdominal distension and pain, should be timely medical treatment, can be given anti-infection and other treatments. It is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and actively standardize the treatment. The above drugs should be used under the guidance of a doctor, avoid self-medication.