The small abdomen is getting bigger and swollen, consider the following eight diseases: first point, local fat accumulation, long-term high-fat diet and high cholesterol diet can cause fat accumulation, obesity, and thus small abdominal swelling. The second point, subcutaneous edema, due to the presence of exudate and leakage fluid, such as hypoproteinemia, cirrhosis of the liver, etc. can cause tissue edema, and thus the small abdomen becomes larger and larger. The third point, sigmoid colon diseases, such as sigmoid colon tumor, benign sigmoid colon polyps, may cause intestinal obstruction, thus appearing lower abdominal distension and discomfort, accompanied by small abdominal enlargement. The fourth point, female uterine and adnexal diseases, such as tubal cysts or cervical diseases, may cause the small abdomen to become larger and larger. Fifth point, tumors, such as neurofibroma and liposarcoma, which gradually increase in size, can also cause lower abdominal distension and pain with enlargement. The sixth point, prostate diseases and tumors. The seventh point, certain malignant teratoma can also cause the small abdomen to increase in size. The eighth point, small intestine diseases, such as small intestine mesenchymal tumor, small intestine mucosal disease, will cause small abdominal distension and discomfort with enlargement. These are the reasons why the small abdomen is getting bigger and bigger.