Occupation refers to occupying lesions, which can be simply understood as the growth of other substances inside or around healthy organs, occupying the normal healthy organ growth position, or growing inside healthy tissues, causing pressure on the internal tissues, affecting the normal tissue functioning, and causing a certain kind of impact on the body, for example, when the occupying lesion occurs in the ovary, it may cause infertility in females. In terms of nature, space-occupying lesions are usually divided into two categories: malignant and benign lesions, malignant space-occupying lesions usually refer to liver cancer, ovarian cancer, lung cancer, etc., while benign space-occupying lesions usually refer to adenomas, hemangiomas, liver cysts, etc. Once diagnosed as occupying lesions, we should pay enough attention to them and combine them with corresponding examinations to determine the nature of the lesions, so as to achieve early detection and early treatment.