Hi I have a lump about the size of a tennis ball but not exactly round in back of my right knee.  Just under the back of my right knee actually, to the left side.  It doesnt hurt but it is uncomfortable when I walk up stairs or get up from being on my knees.  I appreciate your response.  Thanks.
HI, Welcome with your query to Chat Doctor. Based on the facts of your query - you seem to have Moran Bakers Cyst of the knee, under your right KNEE. Remedy-Get the USG and X-ray Knesset Second Opinion on the knee lump from Orthopedic Surgeon. Who would treat it accordingly as per the need of your case. Hope this would help you to plan treatment with your doctor. Welcome for any further query in this regard Will appreciate writing your feedback review comments, to help the needy patients like you at Chat Doctor. Good Day!! Chat Doctor. S. Genl-CVTS