Lipoma is less likely to become cancerous and it is the most common benign soft tissue tumor. Lipomas are usually formed by the accumulation of fat in the body. The tumor is surrounded by a thin layer of connective tissue and contains clusters of normal fat cells that are lobulated by connective tissue bundles. Lipomas usually grow under the skin in the extremities and trunk area of the body, but rarely occur elsewhere. If lipomas are benign and do not affect normal life, they can be treated without treatment. You can pay more attention to diet in daily life, mainly light diet and avoid spicy stimulation. Larger ones can be removed surgically. If there is lipoma in the deep part of the body, there is a chance of malignant transformation, and some patients may develop sarcoma-like lesions. Once a lipoma is found in the deep part of the body, it must be examined in a hospital to find out the degree of benignity and malignancy of the lipoma, and if it is malignant, it should be treated in time. In general, lipoma is a benign tumor and will not become malignant. We should pay more attention to it in our daily life and seek medical diagnosis if it is present.