I reviewed your photo, and the main issues appear to be skin laxity, crepey texture, and some dimpling around the knee rather than simply excess fat. If there is a small pocket of fat around the inner knee, very conservative liposuction may help contour, but liposuction alone can make loose or thin skin look worse if the skin does not retract well. Non-surgical or minimally invasive options may include radiofrequency skin tightening, RF microneedling, ultrasound-based tightening, or biostimulatory treatments, though results in the knee area are usually modest and require realistic expectations. If the laxity is more significant, a surgical skin excision or lift can improve loose skin but leaves scars and must be planned carefully. An in-person exam with a board-certified plastic surgeon or experienced aesthetic physician is the best way to decide whether the problem is skin, fat, cellulite-type tethering, or a combination.