The most obvious symptom will be a sudden, severe pain in the upper part of your arm or at the elbow, depending on where the tendon is injured. You may hear or feel a "pop" when a tendon tears. Other signs that you may have torn a biceps tendon can include: Sharp pain at the shoulder or elbow. A bruise that appears on the upper arm or forearm near the elbow. A feeling of weakness in the shoulder or elbow. Trouble rotating your arm from a "palm down" to a "palm up" position. A change in the contour of the front of your bicep in the upper arm (“Popeye muscle”). While surgery may be needed to fix a torn tendon, in many cases people with a torn tendon can still function normally. Symptoms can be relieved using the same treatments that are used to treat tendonitis. Tears at the level of the elbow more often require operative repair.