What is hand sesamoid bones?

The hand sesamoid bones are small bone structures located within the tendons that attach to the thumb and the little finger. They play an important role in the function of the hands by providing support and stability to the tendons during movement. There are two sesamoid bones in the thumb, while the little finger has only one. They can vary in shape and size, and may sometimes develop as a result of excessive stress or repetitive motion. Injuries to the hand sesamoid bones can occur from overuse, trauma, or certain medical conditions, and may lead to pain and discomfort in the hand. Treatment options can range from rest and physical therapy to surgery in more severe cases.