Consciousness disorder can be divided into several levels from the degree of awakening.

Consciousness disorder can generally be divided into three levels from the degree of awakening:

1. awake; High clarity of consciousness, strong understanding of changes in oneself and surrounding environment, quick thinking and quick response.

2. delusional state; Delusion is a manifestation of consciousness disorder, which is mainly manifested in obvious abnormality in judgment and cognition of people around and environment. Explain that the patient has hallucinations, illusions or beliefs that are obviously inconsistent with the facts.

3. coma; Coma can be regarded as the lowest level of consciousness and the most dangerous state, because it may lead to life-threatening. The patient's consciousness completely disappeared, he could not communicate with the outside world, and there was no conscious and behavioral response.

In addition, these three stages are medically subdivided as follows:

1. Awake state: awake, alert and easy to wake up.

2. Unconscious state: mild unconsciousness, moderate unconsciousness and severe unconsciousness.

3. Coma: shallow coma, moderate coma, deep coma and extreme coma.

Generally speaking, consciousness refers to our ability to react and perceive the world. Consciousness disorder refers to the loss of this ability to a certain extent due to various reasons, and its degree reflects the severity of the disease. Without timely and reasonable treatment and intervention, this situation may cause irreversible damage to the body and even endanger life safety.