Other signs and symptoms of HIV infection include: 1  genital ulcers. 2  genital warts. 3  severe mucosal herpes infections.
1 Pain, swelling, redness, and warmth that develop suddenly in a big toe joint may be caused by gout. 2  Other conditions or diseases that may cause inflammation include: 3  Arthritis or rheumatic diseases. 4  Retrocalcaneal bursitis and tendinitis, which can occur from overuse injuries.
People who participate in sports that involve twisting the knee, such as basketball, are more likely to experience the types of knee injuries that cause swelling. Obesity. Excess weight puts added stress on the knee joint, contributing to the tissue and joint overload and knee degeneration that can lead to a swollen knee. Obesity increases your risk of osteoarthritis, one of the more frequent causes of knee swelling. Complications. Complications of a swollen knee can include: Muscle loss. Fluid in the knee can harm the working of your muscles and cause thigh muscles to weaken and atrophy. Fluid-filled sac (Baker's cyst).