Achilles tendinopathy is a condition that affects the Achilles tendon, which connects the calf muscles to the heel bone. It occurs when the tendon becomes irritated or damaged, often due to overuse, repetitive strain, or sudden increases in physical activity. Symptoms typically include pain, stiffness, and swelling along the tendon, especially during activities like running or jumping. This condition is common among athletes, particularly those involved in sports that require running or jumping. Treatment usually involves rest, physical therapy, and anti-inflammatory medications. In some cases, more advanced interventions, such as injections or surgery, may be necessary to promote healing.