What is the medical term for an abnormal enlargement of the joint at the base of the big toe?

The medical term for an abnormal enlargement of the joint at the base of the big toe is bunion. This condition, also known as hallux valgus, occurs when the big toe deviates towards the second toe, causing the joint at the base of the big toe to protrude outward. This enlargement can result in pain, inflammation, and difficulty in footwear.

Bursitis refers to inflammation of a bursa, which is a fluid-filled sac that reduces friction between tissues. While bursitis can occur near the big toe joint, it does not specifically refer to the deformity associated with a bunion. Fibromyalgia is a chronic condition characterized by widespread musculoskeletal pain, fatigue, and tenderness in localized areas, but it is unrelated to joint enlargement. DJD, or degenerative joint disease, commonly refers to osteoarthritis, which is a degenerative condition that can affect joints, but it does not specifically describe the protrusion and deformity associated with a bunion. Therefore, bunion is the most accurate term to describe the abnormal enlargement at the base of the big toe.