Progressive disease

This may happen until death, serious debility, or organ failure occurs.

[1] Some progressive diseases can be halted and reversed by treatment (surgical, dietary, or lifestyle interventions).

Biologically, many of these are also referred to as degenerative diseases due to the cellular changes.

There are examples of slowly and rapidly progressive diseases affecting all organ systems and parts of the body.

The following are some examples of rapidly and slowly progressive diseases affecting various organ systems:[citation needed]