Depending on the cause, such as head trauma, drugs toxication or substances use, it is possible to enter the coma state as a result of the chemical changes or body edema. The coma is graded by doctors and is tried to be treated in intensive care units, which are graded by the health authority. Here, the patient is seen by specialists from all the medical branches, required according to the disease leading to coma, and the treatment is planned.
The patient may never come out of the coma state, or even if relieved form the coma, may remain in the so-called vegetative state. Some lucky patients will have to live with many sequels after months or even years of rehabilitation. Those who are more fortunate may return to their everyday life.