Intra-articular injections include: 1, the common is sodium vitrate that is often said to play sodium vitrate injection, generally 1 week to play 1 time, 4-5 weeks for a course of treatment. Sodium vitrate can play a role in lubricating the joints and nourishing the cartilage, there is a short-term effect, no long-term effect, there has been corresponding clinical evidence-based medicine. Many patients can consider intra-articular injection of sodium vitreous acid if the arthritis is not very serious; 2. Intra-articular injection of hormones, i.e. tretinoin or betamethasone type. The role of this drug is mainly anti-inflammatory and pain relief, playing in the joint can quickly relieve the patient’s symptoms, to achieve the role of anti-inflammatory and pain relief. However, this drug can not be played for a long time, usually 2-3 times in a year, for patients with severe arthritis, less suitable for surgery can consider playing the drug, but for patients with relatively light arthritis is less advocated to play the drug.