Many people develop “lumps and bumps” on their bodies that cause pain or discomfort. Common soft tissue masses include lipomas and skin cysts. Lipomas are fatty benign (not cancerous) tumors which are made up of fat cells and appear as balls of fat. Skin cysts are another common type of skin lesion. These can change in size, can burst and sometimes drain whitish or yellowish discharge. Surgical removal of these lesions is straightforward.