<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi will shaving my legs a few minutes ago I notice a hard lump in my leg I can t really tell if it is mobile or not it is about 6 inch above my ankle bone, inside of leg...the size is probably the size of a pencil eraser. It is painless. I am 39 yrs old, no significant med hx. I weigh 120 lbs 5 8.  <response>: Thank you for asking Chat Doctor. My name is Chat Doctor. Depending upon nature of this lump, it can be -sebaceous cyst Epidermis Cyst ; a swelling in the skin arising in a sebaceous gland, -Lipoma a benign tumor of fatty tissue. Xanthoma a skin condition in which certain fats build up under the surface of the skinorbit can be just an inflammatory swelling... At ankle regions, Bursitis inflammation of bursa; when bursa a small fluid-filled sac can get damaged by trauma. Such swellings need a clinical assessment by the physician for diagnosis and treatment. Hope this may help you. Let me know if anything is not clear. Thanks. 