The appearance of suprapatellar bursa effusion is generally divided into two cases, one is external injury, and the other is usually kneeling more often, for knee injury cases more often. The most classical way to eliminate the effusion is to rest in bed as much as possible, avoid excessive knee activities, and protect with external fixation of braces if necessary. In addition, topical application of Yunnan Baiyao aerosol or pain relieving cream, as well as hot compresses, physical therapy or red light therapy, can promote blood circulation around the knee joint and facilitate the absorption of the suprapatellar capsule fluid. If the swelling itself is particularly pronounced, the suprapatellar bursa fluid is particularly large, and there is also significant synovial tissue edema. If conservative treatment does not produce particularly good results, surgery may also be required and attention must be paid to the maintenance of the knee joint during the treatment process.