What is the cause of the bulge on the outside of the knee?

Friends who like to play basketball, running and other sports should pay great attention to the health of their knees, because the knees are the main organs involved in some sports, which means that if the knees are injured, it will greatly affect people's exercise. The knee is also a very fragile organ and can be easily injured. A bulge on the outside of the knee is a very common condition and needs to be paid attention to and treated. Let me explain what the bulge on the outside of the knee is.

It may be local synovitis caused by excessive exercise. First of all, you should pay attention to rest and avoid strenuous exercise. You can apply local hot compress. If it is painful, you can treat it with intravenous penicillin, or take some oral medication such as ibuprofen suspension. Generally, pay more attention to rest, and you can get good relief. Avoid catching cold and keep warm.

This situation may also be the case of a meniscus cyst. Causes of meniscus cysts 1. Trauma: It can cause contusion and blood accumulation in the meniscus tissue, leading to myxoid degeneration. 2. Degeneration with age: It can cause local necrosis and mucin degeneration into cysts. 3. The synovial cell inclusions or metaplastic cells secreting mucus in the meniscus tissue lead to cyst formation. 4. Synovial cells are displaced into the meniscus through tiny tears in the fibrocartilage, leading to the secretion of acidic mucopolysaccharide proteins, forming the contents of the meniscus cyst. First, a smaller cyst appears in the avascular area. Later, due to the pumping effect of synovial fluid suction during joint movement, the small cyst migrates to the surrounding area of ​​the knee joint. More fluid enters the cyst, causing its volume to continue to increase.