The symptoms of tendon rupture are mainly the following: first, a pronounced painful sensation, because the rupture of the tendon leads to the irritation of some small nerves that pass through the tendon, resulting in a pronounced painful sensation. In addition, the formation of inflammatory lesions after the injury, the formation of inflammatory edema and the stimulation of the surrounding tissues will lead to a further increase in this pain, especially when carrying out activities, due to pulling the nerve injury site to produce further stimulation, will lead to a further increase in pain. Second, the local swelling is due to the rupture of small blood vessels when the tendon ruptures, resulting in blood leakage from the vessels, and the gradual increase in the amount of blood leakage will lead to the formation of local swelling, which will be further aggravated by inflammatory edema, resulting in more pronounced local swelling. Third, the fingers and joints may have unfavorable movement, because the tendon rupture can not effectively contract the muscles, which will lead to significant restrictions in joint movement.