Lipomas on the back are usually not harmful to the body, but can cause uncomfortable symptoms if a lesion develops. Lipoma can appear in any part of the body with fat, usually due to mature fat cells composition, belongs to a common soft tissue benign tumor. When a lipoma on the back appears as a localized mass, there are usually no other uncomfortable symptoms and it will not affect the body. However, if the lipoma on the back becomes diseased or abnormally enlarged, it may compress the local nerves or blood vessels, causing pain, numbness and other discomforts. If the tumor is squeezed while sleeping, internal bleeding and pain may occur. When symptoms occur, it is recommended to go to the hospital for examination and treatment in time, so as to avoid the deterioration of the condition, which may cause serious impact on daily life and health.