Unconscious Condition is a medical term used to describe a state of reduced consciousness, such as a COMA. A COMA is a prolonged state of unconsciousness in which a person cannot be awakened and has no response to stimuli. It is caused by an injury or illness, and can last for days, weeks, or even months. COMA patients may show some reflexive responses, but are unable to interact with their environment. Treatment for a COMA depends on the underlying cause, and can include medications, surgery, or other therapies.