Common symptoms of knee pain include pain, swelling, stiffness, and difficulty with movements such as walking up and down stairs, squatting and standing up. Patients may also experience significant discomfort in the knee when there is a large change in temperature. The main types are as follows: the following are generalities, the specifics of which could be written in a professional book! So for reference only, to improve basic medical understanding. Knee pain caused by strain and poor posture It is considered a chronic and gentle injury, and physical therapy such as heat therapy, hydrotherapy, ultrasound and acupuncture can be used to reduce the pain during acute episodes. Pain can also be relieved by using Chinese herbal medicines that mainly work by activating blood circulation and removing blood stasis. But good rest is needed in between. Knee pain caused by sports injuries, acute more severe injuries. Within 24 hours, local cold compresses and fixation can be applied, and after 24 hours, analgesic and anti-inflammatory topical painkillers can be used to relax the tendons and blood, and warm the meridians and channels. The main options are Yunnan Baiyao tincture, Yunnan Baiyao spray, and of course, the high profile Fotarine emulsion. Patients can also be treated with acupuncture and internal medication. Of course it is also necessary to brake better and protect themselves to rest. Some severe injuries also need to be treated with minimally invasive arthroscopic surgery. Therefore, it is important to see the hospital after acute injury and actively review it regularly. It is important to avoid missing out on surgery. Knee pain caused by osteoarthritis is the most common problem among older people. Just like car tires that have been driven for decades, aging and degeneration are inevitable. Physiotherapy can be used early on to gently and effectively relieve the pain and stiffness in the knee joint. Conventional physical therapy methods include ultrashort wave, microwave, iontophoresis, red light irradiation, and transcutaneous electrical nerve stimulation. In the medium term, joint cavity injections are available. The effect varies from person to person. In the late stage, conservative treatment is not very useful, mainly joint replacement, 85 percent of the surgery will have good results. Knee pain caused by rheumatoid arthritis When treating rheumatoid arthritis of the knee, you can use anti-inflammatory and analgesic drugs, but the overall is considered an internal disease, the effect is slow, some Chinese medicine effect can be, but must be careful not to eat hormonal Chinese medicine. Some Chinese herbs are effective, but you must be careful not to take hormonal herbs. Later on, joint replacement treatment is also needed.