I have 2 lumps on the outside of my right knee. It doesnt hurt to the touch and it gets bigger every now and again. I have had to have knee surgery before, I hyper extended my knee backwards when I was younger. I have had these lumps for awhile now. Im 42 yr old male.
Hi. Thanks for your query and an elucidated history. These lumps look to be of synovial (membrane which covers the joint and gives the joint the fluid to keep it friction-less) origin. This is confirmed by your history of the swellings getting bigger and smaller on its own. This can be confirmed by MRI / FNAC- fine needle aspiration cytology. If the swellings are not having any symptoms, you can watch team. Surgery to remove for getting rid of the disease and to get a histopathological diagnosis can be done.