Lipoma is a common clinical disease characterized by tumor-like normal adipose tissue, often occurring in the limbs and trunk. It has clearly defined margins, is lobulated, soft in texture, and may feel like a pseudocyst, with no pain symptoms. The growth is slow, and some can grow quite large. Deep-seated lipomas can potentially become malignant and should be surgically removed promptly. Another type is the painful lipoma, which often occurs in patients with a family history. These tumors are usually smaller and commonly distributed symmetrically. However, most lipoma patients do not experience pain symptoms; it is only the painful lipomas that are painful. These are also characterized by a family history, symmetrical distribution, and smaller size.