Common causes of ascites in the stomach are liver cirrhosis, tuberculous peritonitis and intra-abdominal metastasis of tumors. In addition to the symptoms of the primary disease, patients with ascites may also present with abdominal distention, mild abdominal pain, weakness, nausea, vomiting, and loss of appetite. A small amount of ascites is often not obvious, but a large amount of ascites can cause dyspnea, oliguria, and may cause malnutrition, anemia, and hypoproteinemia. Patients with large amounts of ascites may have umbilical hernia, increased waist circumference, weight gain, swelling of the lower limbs, and limited mobility. Prolonged massive ascites can lead to electrolyte disturbances in patients. If the ascites is caused by peritonitis, there will be abdominal pressure pain and shock in serious cases; if it is caused by tuberculous peritonitis, ascites is often accompanied by hypothermia and night sweats; if the patient is combined with intestinal tuberculosis, intestinal obstruction and intestinal perforation may occur. In some patients, the abdominal incision is not healed for a long time after dissection due to unclear diagnosis, which may lead to long-term pus flow and exudate. Therefore, when it is not clear whether the patient is suffering from ascites caused by tuberculous peritonitis, do not easily perform a dissection, otherwise the consequences are unthinkable.