The abdomen of a 52-year-old woman has recently become bigger, considering obesity, uterine fibroids, ovarian cancer and so on. 1. Obesity: frequent consumption of high-calorie food, less exercise will lead to the accumulation of body fat and the formation of obesity, which will lead to the symptom that the abdomen is getting bigger and bigger. 2. Uterine fibroids: uterine fibroids are benign tumors formed by proliferation of uterine smooth muscle tissues. When the tumors are small, there may be no conscious symptoms, but some tumors are large, which will make the uterus exceed the size of third trimester pregnancy, which will be manifested as abdominal lumps, which will look as if the abdomen is getting bigger recently, and is usually accompanied by symptoms of increase in menstruation and prolongation of menstruation. 3. Ovarian cancer: ovarian cancer is a malignant neoplastic disease occurring in ovary, the symptom is not obvious in early stage, with the increase of tumor, it will be manifested as abdominal mass, so the abdomen is getting bigger and bigger, in addition, ovarian cancer may also be combined with ascites, so there are also some ovarian cancers that will appear the rapid increase of abdominal circumference in a short period of time. There may be other reasons for the recent enlargement of 52-year-old woman’s abdomen. It is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or therapy under the guidance of the doctor.