What's a light coma?

Shallow coma refers to the loss of most of the patient's consciousness, no autonomous activity, no response to light and sound stimulation, defensive reactions such as painful expression or limb withdrawal to pain stimulation, corneal reflex, pupil light reflex, eyeball movement, swallowing reflex, etc. may exist. Respiratory blood pressure pulse, no obvious change, may be accompanied by incontinence or urinary retention, causes of shallow coma, encephalitis, epidemic cerebrospinal meningitis, enterotyphoid fever, tetanus, carbon monoxide poisoning, toxic dysentery, severe diabetes, severe liver disease. Different causes, the probability of awakening is also very different, some difficult to wake up, will become more serious.