If a patient has a biceps tendon rupture, the following manifestations often occur: first, there will be severe pain, and the patient may feel severe pain locally at the site of the rupture, and there is significant pressure pain when pressure is applied to it. Second, such patients may have significant local swelling in the injury, and this swelling is often caused by massive internal bleeding under the skin. Third, there may be significant restriction of movement. These patients are not able to move the elbow joint, especially not to flex the elbow joint, and there is significant muscle weakness when the patient flexes the elbow joint. Fourth, there may be a loss of muscular landmarks, for example, the biceps tendon may be clearly elevated in the middle of the elbow fossa, but after the injury, the tendon is neither visible nor palpable.