Hidden swelling of subcutaneous lipoma may be caused by squeezing the surrounding soft tissues or nerves. Subcutaneous lipoma is a benign tumor, due to the abnormal proliferation and differentiation of adipose tissue, usually there is no pain or slight discomfort, the hidden swelling, may be the size of the lipoma has become larger, compression of the local soft tissues or nerves caused by the symptoms. Subcutaneous lipoma should be examined in the hospital in time, and if treatment is needed, surgery is usually needed to remove the lipoma. Subcutaneous lipoma is a benign tumor, surgical treatment also belongs to the conventional surgery, after surgery, change the medicine on time, pay attention to the wound hygiene, prevent infection, most of them can be cured.