In the clinical lipoma 5cm, surgical resection is required. During the surgical resection, the lipoma must be completely removed together with the envelope, which can effectively avoid the recurrence of the lipoma after surgery. It should be noted that the lipoma must be sent for pathological examination after resection in order to make a clear diagnosis. Generally, lipoma is a tumor of normal fat-like tissue, mostly caused by fat deposition, which occurs in the limbs and trunk of human body, and the boundary of lipoma is relatively clear and lobulated, with soft texture and painless. It should be noted that the growth rate of lipoma is particularly slow, but if the lipoma is relatively large, it is recommended to have it surgically removed in time, because larger lipomas are prone to malignant changes. After the lipoma is removed, the patient needs to undergo regular review, such as ultrasound examination, to clarify whether there is any recurrence of the lipoma. After lipoma removal, the surgical incision must be carefully cared for to prevent the occurrence of subcutaneous fluid accumulation and poor healing of the surgical incision.