The growing belly may be caused by obesity, if the recent living conditions are very good, the subcutaneous fat increases abdominal fat will also increase, to the hospital to check, so as to avoid the abdominal cavity to grow lumps. There is also the possibility of a long lump in the abdominal cavity or a mass in the abdominal cavity, including benign masses and also malignant tumors. If there is a mass, the abdomen will be hard when you press it with your hand, you can feel the mobility, and you can also feel whether the boundary is clear, you should go to the hospital for examination in time. If it is a benign mass, it needs to be removed surgically. If it is a malignant tumor, there is a possibility of metastasis if it is not removed in time. In female patients, the growing size of small belly may also be pregnancy. Patients with history of sexual life and menopause should be examined in time to avoid pregnancy.