Diagnosis

Hunt-Hess Grades of Subarachnoid Hemorrhage

Choose a preferred language

Your loved one may be unable to make decisions about treatment. So you may need to decide what’s best for them. Your loved one’s surgeon, who is an expert on the brain (neurosurgeon), will talk with you. They may refer to the Hunt-Hess scale (see below). This scale helps the surgeon assess a person's condition. Treatment options can be affected by test results and the grade showing how severe the hemorrhage is.

Healthcare provider with digital tablet talking to woman.


Hunt-Hess grades of subarachnoid hemorrhage

Grade

How your loved one may feel

I

Alert, aware of surroundings, either no symptoms or mild headache or neck stiffness

II

Alert, aware of surroundings, moderate to severe headache, stiff neck, no neurologic defect except cranial nerve palsy

III

Sluggish or confused, has weakness or partial or severe paralysis on one side of the body

IV

Dazed, has total paralysis on one side of the body

V

Comatose, with abnormal posture

Adapted from Hunt WE, Hess RM. Surgical Risk as Related to Time of Intervention in the Repair of Intracranial Aneurysm. J Neurosurg 1968; 28 (1):14–20.

The grade is advanced one level if you have stroke plus a serious systemic disease such as high blood pressure, diabetes, severe hardening of the arteries, or chronic lung disease. It's also raised one level if you have stroke and vasospasm.

Your neurosurgeon may use another aneurysm and neurological grading system, such as the Glascow Coma Scale or the World Federation of Neurological Surgeons grading scale.

Online Medical Reviewer: Joseph Campellone MD

Online Medical Reviewer: Marianne Fraser MSN RN

Online Medical Reviewer: Raymond Kent Turley BSN MSN RN

Date Last Reviewed: 08/01/2024

© 2000-2026 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.

Make an Appointment

Make an Appointment

Find a Doctor

Find a Doctor

Find a Location

Find a Location

Related Services

Stroke & Neuroscience Center

Related Articles
Read article
Brain Health
Computed Tomography (CT) Scan of the Brain

A computed tomography (CT) scan is an imaging test that uses X-rays and a computer to make detailed images of the body. A CT scan shows details of the bones, muscles, fat, and organs.

Read article
Brain Health
Neurological Exam

A neurological exam may be performed with instruments, such as lights and reflex hammers, and usually does not cause any pain.

Read article
Brain Health
Having an Electroencephalogram (EEG)

An electroencephalogram (EEG) is a test to find problems in the electrical activity of the brain. Read on to learn what happens before, during, and after the test.

Read article
Brain Health
Electroencephalogram (EEG)

An EEG is a procedure that detects abnormalities in your brain waves, or in the electrical activity of your brain.