Joints form the connections between bones. They provide support and help you move. Any damage to the joints from disease or injury can interfere with your movement and cause a lot of pain.
Joint pain is discomfort that arises from any joint. Many different conditions can lead to painful joints, including osteoarthritis, rheumatoid arthritis, bursitis, gout, strains, sprains, and other injuries. it is extremely common. In one national survey, about one-third of adults reported having it within the past 30 days. Knee pain was the most common complaint, followed by shoulder and hip pain, but it can affect any part of your body, from your ankles and feet to your shoulders and hands. As you get older, painful joints become increasingly more common.
Joint pain can range from mildly irritating to debilitating. It may go away after a few weeks (acute), or last for several weeks or months (chronic). Even short-term pain and swelling in the joints can affect your quality of life. Whatever the cause of it, you can usually manage it with medication, physical therapy, or alternative treatments.

Causes of joint pains, other than arthritis:

The causes of pain in the joints are several and arthritis i.e. inflammation of joint is just one of them. An injury or disease of the joint or its adjacent tissues can cause joint pain. Here is a list of some of the causes:

1. Sprains and strains
2. Inflammation of tendons (tendinitis/tendonitis)
3. Bursitis
4. Traumatic injury
5. Infections
6. Hypothyroidism
7. Lupus
8. Fibromyalgia
9. Bone cancer
10. Side effects of medications