Osteochondritis Dissecans is a joint condition where a small segment of bone underneath the cartilage loses its blood supply, leading to the death of the bone tissue. This can cause pain, swelling, and limited movement in the affected joint, often seen in the knee, ankle, or elbow. It commonly occurs in young athletes, particularly during periods of growth. The exact cause of Osteochondritis Dissecans is not fully understood, but it may be related to repetitive stress on the joint or trauma. Diagnosis typically involves X-rays or MRI scans, and treatment options range from rest and physical therapy to surgical intervention in more severe cases.