Why do medical professionals claim that rotator cuff muscle injuries never heal?

Needs rx immediately: Without proper treatment, symptoms of a rotator cuff injury or tear can persist for months or years, and they usually become worse over time. Most rotator cuff injuries respond to treatment within four to six weeks, especially if an injection is part of the treatment.

Tears don't heal: The reason they tell you this is because an actual "tear" of the rotator cuff tendon cannot heal on its own. Once torn, the tendon remains torn. However, a rotator cuff injury usually represents an irritation or inflammation that inhibits normal function of the muscles. This can heal and return to normal. Many people feel perfectly fine, even with a persistent tear in the rotator cuff.