The main reasons for the pain and hard lumps around the navel are as follows: 1. Consider the presence of persistent stool, people may be old or sick for a long time, the intestinal peristalsis may be slow, the stool can not run down completely, adhering to the intestinal wall, a hard lump appears after a long time. 2. Consider the presence of abdominal tumors, cysts or lipomas, tumors can occur in the abdominal cavity, around the navel may be metastasis from other tumors, or in the peritoneum, subcutaneous, lipomas are usually under the skin, a small benign tumor. 3. The tumor can occur in the abdominal cavity, around the navel, it may be metastasis from other tumors, or in the peritoneum, subcutaneous, lipoma is usually under the skin, it is a benign small tumor. 3, consider intestinal obstruction, intestinal obstruction is divided into mechanical intestinal obstruction or paralytic intestinal obstruction and other types, fecal obstruction is not accessible, multiple hard lumps can be touched by hand. If the above cases occur, it is recommended to consult the gastroenterology department for X-ray examination to determine the location and nature.