Knee joint is not swollen, there is noise when activity and painful how to treat

This phenomenon is generally considered to be caused by ligament damage or rheumatoid arthritis of the knee joint. You need to go to the orthopedics department of the hospital in time. If it is meniscus injury, you need to use anti-inflammatory drugs actively. If it is rheumatoid arthritis, you need to follow the doctor's advice to use anti-rheumatic drugs actively.