<s>[INST] Hi, I have a lump on my left leg above my knee on my thigh. Everytime I used to have to go to the bathroom I would get this dull pain where the lump is. Now I get this excruciating pain. It can happen when I m sitting, standing, it s worse when I m going to the bathroom. It seems to let up when I m int he midst of pushing but once I stop it comes right back then it goes away. Any suggestions? [/INST] Hi, dairy have gone through your question. I can understand your concern. You may have some soft tissue tumor like lipoma, from, liposarcoma, amyloid tumor or other mass.  You should go for fine needle aspiration cytology or biopsy of that lump. It will give you exact diagnosis. Then you should take treatment accordingly. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using Chat Doctor. Wish you a very good health. </s>