Heberden’s nodes, characterized by bony bumps on the end joints of the fingers, are a common health condition that typically emerges in midlife. While women are more prone to developing these nodes, men can also be affected.
Understanding Heberden’s Nodes
Heberden’s nodes are abnormal bony growths that manifest on the distal interphalangeal (DIP) joints, which are the joints located closest to the fingernails. These nodes develop as a result of the erosion of the cartilage within the joint, causing the bones to rub against each other. In response to this friction, the body forms new bone, leading to the formation of nodules or nodes on the affected joints. As Heberden’s nodes progress, the fingers may become twisted and enlarged, resulting in a gnarled appearance.
Causes of Heberden’s Nodes
Heberden’s nodes are a common symptom of osteoarthritis, typically appearing as one of the first indicators of the condition. This occurs when the protective cartilage covering the ends of bones deteriorates due to either normal wear and tear or an injury to the affected joint. The loss of cartilage results in a lack of cushioning within the joints, leading to friction and the formation of bone spurs, also known as osteophytes, around the affected area. As a consequence, Heberden’s nodes develop. Some studies suggest that ligaments may also play a role in the initial stages of nodal development.