Types of Headaches: Causes, Symptoms, and Treatment

Most headaches fall into three types: tension headaches (a dull, band-like pressure around the head), migraines (throbbing pain, often one-sided, with nausea and light sensitivity), and cluster headaches (severe stabbing pain around one eye). Common causes include stress, poor sleep, dehydration, eye strain, and hormonal changes. Most headaches respond to rest, fluids, and over-the-counter pain relievers — but a sudden severe headache, or one with fever, stiff neck, confusion, weakness, or vision loss, is an emergency. Here is how to tell the types apart, what triggers them, and when to seek care.

Primary vs. secondary headaches

Doctors group headaches into two categories:

• Primary headaches are the condition itself — the headache comes from overactivity or dysfunction of pain-sensitive structures in the head. Tension headaches, migraines, and cluster headaches are primary headaches.
• Secondary headaches are a symptom of another problem, such as a sinus infection, medication overuse, head injury, or — rarely — a serious condition like stroke, meningitis, or a brain tumor.

This distinction matters: primary headaches are managed with treatment and prevention, while secondary headaches require finding and treating the underlying cause.

The most common types of headaches

Tension headaches

The most common primary headache. Tension headaches feel like a constant ache or pressure around the head — often at the temples or the back of the head and neck. Stress, poor sleep, poor posture, and skipped meals are frequent triggers. Most respond to over-the-counter pain relievers, hydration, and stress management.

Migraines

Migraines cause moderate to severe throbbing pain, often on one side of the head, and frequently come with nausea, vomiting, and sensitivity to light and sound. Attacks can last hours to days and can be disabling. Migraines run in families and are linked to a combination of genetic and environmental factors. Learn more about migraine headache symptoms and ER treatment, or see the MedlinePlus overview of migraine.

Cluster headaches

Relatively rare but extremely painful, cluster headaches cause severe burning or piercing pain on one side of the head, usually around the eye. They occur in clusters — often at the same time each day for weeks or months — and can be triggered by alcohol and smoking. High-flow oxygen and prescription medications are the mainstays of treatment.

Other headache types

• Sinus headaches — secondary headaches from sinus inflammation or infection, with facial pain and pressure, congestion, and sometimes fever. They are often confused with migraines.
• Medication overuse (rebound) headaches — caused by frequent use of pain medication for headaches, creating a cycle of more headaches and more medication.
• Hormonal headaches — headaches and migraines tied to hormone shifts during menstruation, pregnancy, menopause, or hormonal contraceptive use.

What causes headaches?

Common causes and triggers include:

• Stress and muscle tension in the neck, shoulders, and scalp
• Dehydration, especially with sweating, exercise, or illness
• Eye strain from prolonged screen time
• Poor or irregular sleep
• Hormonal changes
• Illness and injury — infections, concussion, and, rarely, serious conditions such as stroke or brain tumors

For a broad, plain-language reference, see the MedlinePlus guide to headache.

Treatment options

Treatment depends on the headache type and cause:

• Over-the-counter pain relievers — ibuprofen, acetaminophen, or aspirin work for most mild to moderate headaches. Do not give aspirin to children or teenagers because of the risk of Reye’s syndrome. Avoid using pain relievers more than a few days a week to prevent rebound headaches.
• Prescription medications — triptans and CGRP inhibitors for migraines; preventive options such as beta-blockers for frequent attacks; specific therapies like oxygen for cluster headaches.
• Lifestyle and non-drug approaches — regular sleep, hydration, stress management, physical therapy, biofeedback, and cognitive behavioral therapy all have a role, especially for chronic headaches.

Because triggers, severity, and treatment response vary from person to person, frequent or disabling headaches deserve a personalized plan from a physician rather than escalating doses of over-the-counter medication.

Red flags — go to the ER now

Most headaches are not dangerous. These symptoms are the exception — they can signal bleeding in the brain, stroke, or meningitis. Call 911 or come to the ER immediately if you or someone with you has:

• A sudden, severe “thunderclap” headache that reaches maximum intensity within seconds to minutes, or the “worst headache of your life”
• Headache with fever and a stiff neck, especially with confusion or a rash
• Headache with stroke signs: sudden weakness or numbness on one side, facial droop, slurred speech, vision loss, or trouble walking — see the American Stroke Association’s stroke warning signs and call 911
• Headache after a head injury, particularly with vomiting, worsening pain, or increasing drowsiness
• Headache with confusion, fainting, or seizure
• A new or rapidly worsening headache during pregnancy or after delivery, especially with vision changes or swelling
• A new type of headache after age 50, or a new headache in someone with cancer or a weakened immune system

Bellaire ER is open 24/7 with board-certified emergency physicians and on-site CT imaging and lab, so serious causes can be diagnosed and treated without transfer delays.

ER, urgent care, or telemedicine?

• ER — any of the red flags above, or a severe headache unlike your usual pattern. When in doubt, review when to visit the ER.
• Telemedicine — a typical tension headache or a familiar migraine that isn’t responding to your usual treatment; a telemedicine visit can get you evaluated and prescribed medication from home.
• Routine follow-up — recurring headaches without red flags are best managed with an ongoing plan from your physician.

If you’re experiencing a severe headache or any of the red-flag symptoms above, come to Bellaire ER at 5302 Bellaire Blvd, Bellaire, TX 77401 — open 24/7 — call us at (713) 660-0001, or get directions here.