sudden stops and starts, as well as wearing improper footwear or having poor foot biomechanics. Achilles pain typically presents as discomfort, stiffness, or swelling in the back of the heel or lower calf, particularly during physical activity or upon waking in the morning. If left untreated, Achilles pain can progress to more severe symptoms, such as weakness, instability, and difficulty walking or bearing weight on the affected foot.

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Achilles rupture, on the other hand, is a more serious injury that occurs when the Achilles tendon tears partially or completely, usually as a result of sudden, forceful movements such as pushing off forcefully to jump or sprint. Achilles rupture is more common in middle-aged adults, particularly those who participate in sports or activities that require explosive movements or sudden changes in direction. The hallmark symptom of an Achilles rupture is a sudden, sharp pain in the back of the ankle or calf, often described as a "popping" or "snapping" sensation. Individuals with an Achilles rupture may also experience swelling, bruising, and difficulty walking or standing on the affected foot. In severe cases, the ability to point the toes downward may be impaired, indicating a complete rupture of the Achilles tendon.