Visual features of damage. One of a principal characteristic of tendonitis is a particular pain, but in some cases, a checkup of a zone of injured tendon identifies additional symptoms of the damage. Some redness and tumefaction may have emerged around the damaged joint. Obviously, it depends on the location of the damage, such physical signs can differ. For example, in a case of affection of the wrist, it may be distent or if there is a problem with an Achilles’ tendon the back part of the heel may swell.