Uterine cavity is usually characterized by tumors in the uterus, which can be benign or malignant and are usually caused by endometrial polyps, endometrial carcinoma, or incomplete old pregnancy. The final diagnosis needs to be confirmed by scraping and pathological examination. Endometrial polyps and cancer are related to the excessive hyperplasia of the endometrium, so we should pay attention to the regularity of the menstrual cycle and whether there are any painful symptoms in our daily life, get married at the right age to have a baby to avoid the occurrence of endometrial hyperplasia and thus avoid the possibility of occupying the uterine cavity, and once a woman has gynecological diseases, she should have timely symptomatic treatment.