Geriatric knee osteoarthritis, generally known as osteoarthritis of the knee, is a common chronic disease. According to statistics, half of the people over 50 years old in China suffer from osteoarthritis; 90% of women and 80% of men over 65 years old suffer from osteoarthritis. In the process of knee osteoarthritis treatment, most knee osteoarthritis patients have certain misconceptions. Myth #1: Geriatric knee osteoarthritis requires antibiotics. When many patients hear the words “inflammation” and “inflammation,” they associate it with bacterial infections as a matter of course. In fact, the medical term inflammation includes both inflammation caused by infection and aseptic inflammation. In addition to joint pain and swelling, infectious arthritis is often combined with symptoms such as body fever, redness and fever around the joints, and changes in blood indicators such as blood count. While most middle-aged and elderly people’s arthritis belongs to degenerative or called senile osteoarthritis, only need to take anti-inflammatory and analgesic drugs and some nutritional cartilage drugs to relieve the symptoms, blind use of antibiotics is not only ineffective, long-term use of drugs will also cause bacterial resistance, fungal infections, etc. Myth 2: Chondroprotective drugs can protect cartilage Osteoarthritis is the result of inflammation caused by cold and damp, strain and trauma, which causes degenerative lesions due to abnormal proteoglycan biosynthesis in joint cartilage. Only anti-inflammation and blood circulation, improve the metabolic environment of the knee joint, in order to restore the metabolism of cartilage to normal, pure protection of cartilage is not possible, only the fundamental improvement of the metabolic environment is the solution to the root cause. Myth 3: The more analgesics you take, the better the effect Drugs have a certain half-life in the body, which is related to the time of drug action, so some drugs have to be taken 3 times a day, while some drugs are only taken once. The analgesic effect is not proportional to the dosage when it reaches a certain dosage level. When a certain dosage level is reached, increasing the dosage does not enhance the analgesic effect, but can cause serious adverse reactions due to the accumulation of drugs in the body because of excessive dosage or prolonged dosage time. Therefore, instead of blindly taking the drug several times, you should consult your doctor and change the drug or combine it with other drugs appropriately. It is also important to remind patients that although treatment can improve the function of the knee joint, if they do not pay attention to self-protection, the result will be more and more painful joints and more and more money, so it is also very important for patients with osteoarthritis of the knee to maintain their rehabilitation in daily life.