I am a Rheumatoid Arthritis patient. A couple of weeks ago I noticed a swelling, like a soft lump forming at the back of my knee. It was never painful, just experienced a feeling of "heaviness" in my ...

Pain in the back of the knee when walking can result from injuries ... This fluid-filled mass can cause a lump you can feel when you straighten your knee (though, often a Baker's cyst cannot ...

Some lumps or bumps occur on the skin, under the skin, or on the bone. There is a wide variety of causes for these bumps. In addition, most human skulls have a natural prominence on the back of ...