A headache in the back of your head is most often caused by tension in the muscles of your neck and scalp, but it can also stem from nerve irritation, problems in the cervical spine, or poor posture. The location matters because the back of the head is a crossroads where neck muscles, spinal nerves, and blood vessels all converge, and each of these structures can produce distinct types of pain.
Tension-Type Headaches
Tension-type headaches are the most common cause of pain at the back of the head. They produce a dull, pressing sensation that often wraps around both sides of the head like a tight band. The pain typically starts at the base of the skull or the back of the head and can extend to the forehead and temples. Episodes last anywhere from 30 minutes to several days.
The underlying mechanism involves tightness in the muscles of the head and neck, combined with changes in how your brain processes pain signals. Stress, poor sleep, dehydration, skipped meals, and eye strain are among the most reliable triggers. When these headaches happen more than 15 days a month, they’re classified as chronic, and the pain can feel almost constant rather than coming and going.
Over-the-counter pain relievers like ibuprofen (400 mg) or acetaminophen (1,000 mg) are the standard treatment for individual episodes. For chronic tension headaches, the 2023 VA/DoD clinical practice guidelines recommend regular aerobic exercise or progressive strength training as a preventive strategy, alongside physical therapy for persistent cases.
Suboccipital Muscle Strain and Posture
A group of four small, deep muscles at the base of your skull, called the suboccipital muscles, are responsible for fine movements of the head and for keeping your head balanced on top of your spine. When these muscles develop tight, irritable knots (trigger points), they refer pain to the base of the skull, the forehead, the temples, and behind the eyes. This referred pain pattern means a problem at the back of your neck can produce headaches that feel like they’re coming from multiple places.
Forward head posture is the leading culprit. When your head juts forward while you look at a screen, phone, or book, these muscles work overtime to hold your head up against gravity. Desk workers, gamers, and anyone spending hours on a smartphone are especially vulnerable. The pain tends to worsen with prolonged screen time, repetitive neck movements, and sustained awkward positions. If your back-of-head headache reliably shows up after long stretches at a computer, muscle strain from posture is a strong possibility.
Occipital Neuralgia
Occipital neuralgia produces a distinctive type of pain that’s hard to mistake for anything else. It involves the greater occipital nerves, one on each side, which emerge from between the upper vertebrae of the neck and travel through the muscles at the back of the head into the scalp. When one of these nerves becomes irritated or compressed anywhere along that path, the result is a sharp, shooting, electric, or zapping pain on one side of the back of the head. The pain can also radiate forward toward one eye.
Unlike the dull squeeze of a tension headache, occipital neuralgia often feels like sudden jolts or a burning sensation along the nerve’s path. The scalp on the affected side may become extremely tender to touch, making it painful to rest your head on a pillow or brush your hair. Causes include tight neck muscles compressing the nerve, whiplash injuries, arthritis in the upper cervical spine, and sometimes no identifiable trigger at all.
Treatment often involves an occipital nerve block, an injection of numbing medication near the affected nerve. When successful, these blocks typically provide relief within 20 to 30 minutes and can last anywhere from several hours to several months. Lasting improvement often requires a series of injections rather than a single treatment, and results vary from person to person.
Cervicogenic Headaches
Cervicogenic headaches originate not in the head itself but in the cervical spine, specifically the upper three vertebrae (C1 to C3) and the surrounding structures. Problems in these bones, joints, discs, or muscles send pain signals upward that your brain interprets as a headache. The pain usually starts at the base of the skull on one side and may spread to the forehead or around the eye on the same side.
The telltale feature is a direct connection to neck movement. Your headache gets worse when you turn your head, look up, or hold your neck in one position for a long time. You may also notice reduced range of motion in your neck. Arthritis, disc degeneration, poor posture, and neck injuries are all common triggers. Physical therapy focused on the neck is the primary recommended treatment, with exercises aimed at improving mobility and strengthening the muscles that support the cervical spine.
Exertional Headaches
If your headache strikes during or right after intense physical activity, you may be experiencing an exertional headache. These come on quickly during exercise, weightlifting, running, or even straining during a bowel movement. Most last between five minutes and 48 hours, though they can occasionally persist for a couple of days. The pain is typically throbbing and can be felt across the back of the head or throughout the entire head.
Primary exertional headaches are harmless, caused by the sudden increase in blood pressure and dilation of blood vessels during effort. They tend to happen more in hot weather or at high altitude. However, a severe headache that hits suddenly during exertion, especially for the first time, needs prompt medical evaluation to rule out more serious causes like bleeding in the brain.
Less Common Causes
Several other conditions can produce pain at the back of the head. A Chiari malformation, a structural problem where brain tissue extends into the spinal canal at the base of the skull, can cause headaches that worsen with coughing, straining, or bending over. High blood pressure, particularly during a hypertensive crisis, sometimes causes a pounding headache at the back of the head. Arthritis in the upper cervical spine can irritate nearby nerves and produce chronic posterior head pain.
Headaches that change intensity when you shift positions, getting worse when you stand up or lie down, may signal a pressure imbalance in the fluid surrounding the brain. This pattern is worth mentioning to a doctor because it points to a different category of problem than the muscle and nerve causes described above.
Warning Signs That Need Immediate Attention
Most headaches at the back of the head are not dangerous, but certain features indicate something more serious. A sudden, explosive headache that reaches maximum intensity within seconds, sometimes described as the worst headache of your life, is the single most concerning pattern. This can signal bleeding around the brain and warrants emergency evaluation.
Other red flags include headache accompanied by fever, night sweats, or unexplained weight loss. Neurological symptoms like new weakness in an arm or leg, numbness, vision changes, or confusion alongside a headache also raise concern. A headache that clearly and steadily worsens over days or weeks, rather than coming and going, suggests a progressive process rather than a benign primary headache. People with compromised immune systems who develop a new headache pattern should also be evaluated promptly, as they’re more vulnerable to infections that can affect the brain and its surrounding structures.