Find out what signs and symptoms indicate a headache may be serious and the first aid you can do before consulting your doctor.

Can Headache Kill?

Most people experience headaches from time to time; nearly everyone will have a headache at some point in their lives. But while headaches are common, they're not usually serious. You can treat most headaches easily with over-the-counter medication.

However, there are some rare instances where headaches can be deadly. Here are three ways a headache can kill you:

1. Aneurysmal Subarachnoid Hemorrhage

An aneurysmal subarachnoid hemorrhage (SAH) is a kind of stroke resulting from bleeding in the brain. This bleeding usually occurs when an aneurysm, or a balloon-like bulge in a blood vessel, ruptures.

When this happens, blood enters the space around the brain, known as the subarachnoid space. That can cause a sudden, severe headache that is referred to as the "worst headache of my life."

If not treated immediately, an aneurysmal SAH can lead to brain damage, coma, and even death.

2. Reversible Cerebral Vasoconstriction Syndrome

Reversible cerebral vasoconstriction syndrome (RCVS) is a rare condition that can cause severe, recurring headaches.

RCVS is thought to be caused by the narrowing of blood vessels in the brain. This narrowing can cause a brain shortage of blood and oxygen, triggering a headache.

RCVS is often mistaken for a migraine or other headache disorder. However, RCVS can be more severe and may be accompanied by other symptoms such as stroke-like symptoms, seizures, and even coma.

RCVS can lead to serious health complications, including stroke and death, if not treated.

3. Cerebral Venous Thrombosis

Cerebral venous thrombosis (CVT) occurs when a blood clot happens in the veins that transport the blood from the brain.

This clot can block blood flow and cause a build-up of pressure in the brain. That results in headaches accompanied by experiences such as nausea, vomiting, and blurred vision.

CVT can lead to a stroke, brain damage, and even death if not treated.

While headaches are usually not serious, it's essential to be aware of the rare but potentially deadly conditions that can cause them. If you experience a sudden, severe headache, you must seek medical help immediately.

When Does a Headache Become Dangerous?

Several types of headaches are not dangerous, and each has symptoms and treatment.

Tension headaches are common and are often caused by stress or tension in the neck and shoulders. In addition, treatment for tension headaches includes over-the-counter pain relievers, relaxation techniques, and massage.

Migraine headaches are more severe than tension headaches and often cause nausea and sensitivity to light and sound. Treatment for migraines includes over-the-counter and prescription pain relievers and anti-nausea medications.

Cluster headaches are often described as a feeling of hot vinegar in the eye. Cluster headaches usually last for a few weeks and then go away for some time. Treatment for cluster headaches includes over-the-counter pain relievers and prescription medications.

If you have a severe headache lasting more than a day or two, you should seek a medical diagnosis to find out what is causing it.

First Aid for a Headache

If you have a headache, you can perform first aid moves to help ease the pain.

Identify the source: If the headache is due to dehydration, drink plenty of fluids. And if you're suffering from muscle tension, try a hot bath or apply a heating pad.
Try a humidifier or decongestant: If your headache is due to sinus pressure, try using a humidifier or taking a decongestant. It could be a migraine if you have a headache accompanied by nausea, vomiting, or light sensitivity. In this case, it's best to see a doctor.

Some general first-aid tips can help with any headache. For example, applying pressure to the temples or forehead can help ease the pain. Taking over-the-counter pain medication can also be helpful.

When to See a Doctor

You may wonder when to see a doctor if you have a headache. After all, headaches are common and usually not serious. However, there are some cases where you should see a doctor for your headache.

For instance, if your headache remains for more than a few days, you should seek medical attention. That is especially true if other symptoms accompany the headache, such as:

Fever
Nausea
Vomiting.
Dizziness
Confusion
Vision changes
Weakness
Difficulty speaking
Sudden onset of headache (Thunderclap headache).

You may also want to see a doctor if you get headaches regularly. That is especially true if over-the-counter medications are not relieving your pain. Your medical consultant can assist you to know the cause of your headaches and recommend treatment options.

When Is a Headache Not Dangerous?

When it comes to headaches, there are two types:

Primary
Secondary.

Primary headaches are the most common and include tension headaches and migraines. The headaches are not dangerous, and you can manage them using simple home remedies.

Secondary headaches are caused by an underlying condition, such as a sinus infection or a brain tumor. You should always be alert and seek medical attention if you experience abnormal pains.

Always Be Alert to Detect Abnormal Pains

In most cases, headaches are not dangerous. However, there are some instances when a headache may signify a more serious condition. If your headache has the following symptoms, visit a healthcare center for attention: