It is a medical term for predicting the likely or expected development of a disease, including whether the signs and symptoms will improve or worsen or remain stable over time; expectations of quality of life; the potential for complications and associated health issues; and the likelihood of survival.
It is made on the basis of the normal course of the diagnosed disease, the individual's physical and mental condition, the available treatments, and additional factors.
A complete prognosis includes the expected duration, function, and description of the course of the disease, such as progressive decline, intermittent crisis, or sudden, unpredictable crisis.

See reference for more information.

Adapted from Wikipedia, the free encyclopedia. Internet. Accessed on January 12, 2020.