Arthritis is an inflammation (heat, swelling, and pain) of the lining of the joints. When the lining becomes inflamed, the body produces fluid in the area. This makes the joint swell, hurt, and feel warm.

This condition doesn't happen only to older people. Kids and teens can also develop types of arthritis.

All sites submitted to this category must be designed for use by kids / teens and provide information on or about arthritis.

Websites designed for parents or teachers, or to sell products or services, will not be accepted.

English-only sites. Sites in other languages should be submitted to the appropriate category in International.