Stem cells are a type of cell that can divide and renew themselves. They are found in all tissues of the body, including the joints. When a joint is damaged, stem cells can help repair the damage by creating new cartilage and bone cells. Arthritis is a condition that causes pain and inflammation in the joints. There are many different types of arthritis, but the most common type is osteoarthritis. Osteoarthritis occurs when the cartilage that cushions the joints breaks down. This can happen due to wear and tear, injury, or aging. When the cartilage breaks down, the bones rub against each other, causing pain, swelling, and stiffness. Stem cells can be used to treat arthritis by replacing the damaged cartilage. Injections of stem cells into the joints can help repair the damage and reduce pain and inflammation. Clinical trials are currently underway to test the safety and effectiveness of this treatment. There is no cure for arthritis, but stem cell therapy may offer a new way to treat the condition and improve the quality of life for those who suffer from it.