It is a medical emergency, which usually occurs when an inflamed blood vessel in the brain bursts (aneurysm). If not treated immediately, it can lead to permanent brain damage or death, the main symptom is a sudden severe headache, in addition: loss of vision, sensitivity to light or double vision, nausea or vomiting, coma, seizures, stiff neck, weakness on one side of the body, fainting, altered level of consciousness, or abnormal heart rhythm.

 Treatment: depends on the severity of the patient and hospital care, it is necessary to provide supportive care, stop bleeding and limit brain damage. Treatment may include surgery and IV therapy.