Pain on the inside of the knee without redness or swelling should be treated accordingly depending on the cause. Common causes include meniscus injury, rheumatoid arthritis and osteoarthritis of the knee, etc. Commonly used treatments include general treatment, physical therapy, medication and surgery. 1. Meniscus injury: stop the activity immediately, rest in place, apply ice packs within 72 hours, and use bandages to put pressure on the bandage. If the pain is obvious, non-steroidal analgesic and anti-inflammatory drugs such as ibuprofen and diclofenac sodium can be used. If the damage is serious, early surgical treatment should be performed, such as meniscus suture surgery. 2. Rheumatoid arthritis: activities should be reduced, and physical therapy such as infrared light can be used to reduce pain during the active period of the disease. Non-steroidal anti-inflammatory drugs have analgesic and anti-inflammatory effects, which can reduce symptoms. Anti-rheumatic drugs such as methotrexate and sulfasalazine improve the condition. If joint deformity occurs, surgery can be considered if joint function is seriously affected. 3. Osteoarthritis of the knee: wearing knee pads to protect the joints, massage, acupuncture and other physical therapy can reduce pain. For severe cases, the above analgesic and anti-inflammatory drugs and analgesic drugs can be used. Sodium vitrate can also be injected into the joint cavity, which can effectively relieve pain. Surgery may be considered if conservative treatment is not effective or if the condition worsens. There may be other reasons for the pain on the inner side of the knee without redness or swelling. It is recommended to go to the hospital in time to clarify the cause of the disease and standardize the treatment. The above drugs should be used reasonably under the guidance of a doctor, avoid self-medication.