What causes a painful lump in the right thigh?
Patient: I have a mass at the top of my right thigh, in the front, just below the crease area. It s been there for months, but lately has increased in size and seems to be extending in a horizontal direction. It s painful to sleep on that side and causes me to wake up; it is a dull ache and spreads. The best way to describe the throb/ache is like throwing a rock into the water....if that makes sense. It seems to ache right at the spot, then spreads and I can feel it go down my leg. This is recent, the last month or so (the pain and waking me up). Doctor: Hello and Welcome to ‘Ask A Doctor’ service.  I have reviewed your query and here is my advice.  You seem to have inflammation/infection of a lymph gland in femoral triangle in front of thigh. You need a course of antibiotic, anti-inflammatory drugs under expert guidance of a surgeon.  Hope I have answered your query.  Let me know if I can assist you further.