The so-called osteoarthritis often occurs as the patient ages, featuring localized bone hyperplasia and degenerative changes, leading to the destruction of cartilage. This results in congested and swollen synovium, manifesting as clear local symptoms of swelling and pain. Rheumatoid arthritis, on the other hand, mainly occurs due to a streptococcal infection, causing localized pain and swelling, thus forming rheumatoid arthritis. This is the difference between the two. There are also differences in treatment. Early osteoarthritis can be treated with oral non-steroidal anti-inflammatory and analgesic drugs, as well as medications that nourish the cartilage. For rheumatoid arthritis, symptomatic treatment is often necessary, and active anti-rheumatic treatment can be completely effective.