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Headache

Professionally updated: January 12, 2026

A headache is a common condition where you experience pain in the head, forehead, or behind the eyes. It is a feeling most of us have experienced at some point in our lives. But what are the causes, and when should you seek medical attention?

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Jakob Fraes
Specialist in General Medicine, Ph.D.
Read more about Headache. Everything you should know.

What is a headache?

Headache is a general term for pain or discomfort in the head. It can range from mild to severe pain and can be short-term or persistent. There are several different types of headaches, and the causes can vary from person to person.

Causes of headaches

There are many factors that can trigger headaches. These can include stress, lack of sleep, dehydration, certain foods or drinks, and even changes in the weather. Hormonal changes, such as those women experience during menstruation or pregnancy, can also trigger headaches.

3 types of headache

The most common types of headaches include tension headaches, migraines, cluster headaches, and sinus headaches. Each type has its own characteristics and may require different treatments.

Read also about: What is a migraine?

Symptoms to watch out for

While headaches are often harmless, there are some symptoms you should be aware of. If your headache is sudden and very intense, or if it is accompanied by fever, stiff neck, confusion, double vision, or speech difficulties, you should seek medical attention immediately.

Treatment options

Depending on the cause and type of your headache, the treatment may vary. This may include pain medication, lifestyle changes, physical therapy, or acupuncture. Your doctor will be able to advise you on the best treatment plan.

When should you book an appointment with the doctor?

Although most headaches are harmless, it is important to listen to your body. If you experience chronic or severe headaches, or if you notice a change in the pattern of your headache, you should book an appointment with your doctor for an assessment.

Frequently asked questions about headaches

Is a headache a sign of a serious illness?

Although most headaches are harmless and caused by temporary factors such as stress or dehydration, persistent or very severe headaches can in some cases be a sign of a more serious condition. If you are concerned, you should consult a doctor.

Can lack of coffee cause headaches?

Yes, caffeine withdrawal can be a cause of headaches for some people. If you suddenly stop consuming caffeine after drinking it regularly, it can trigger a headache.

Why do I get a headache when I stand up quickly?

This may be due to a drop in blood pressure, also known as orthostatic hypotension. When you stand up quickly, blood may have difficulty reaching the brain quickly enough, which can cause a brief headache.

What is the difference between a migraine and a regular headache?

Migraine is often characterized by a throbbing pain on one side of the head and may be accompanied by symptoms such as nausea, vomiting, and light sensitivity. A common headache tends to be more diffuse and less intense than a migraine. If you are unsure, you should consult a doctor.