The classic sign of a ruptured Achilles tendon is feeling (and sometimes hearing) a pop or snap at the back of your ankle. People often mistakenly think something has hit them, but they’re actually feeling the tendon snap. Other common symptoms include: - Sharp, sudden pain in the back of the ankle near the heel. - Swelling and bruising in the back of the ankle. - Pain when walking, especially upstairs or uphill. - Tenderness in the spot where the tendon is torn. Having surgery to repair a torn