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 problems in the cervical spine, irritated nerves, or physical exertion. The location narrows the list of likely causes considerably, and understanding the type of pain you’re feeling helps pinpoint what’s going on.
Tension-Type Headaches
The most common explanation for pain at the back of your head is a tension-type headache. The pain feels dull and pressure-like rather than throbbing, often described as a tight band or vise wrapping around the head. It tends to spread across both sides rather than concentrating in one spot, and episodes can last anywhere from 30 minutes to seven days.
What makes tension headaches settle in the back of the head specifically is often related to posture. Four pairs of small muscles called the suboccipital muscles connect the base of your skull to the top of your spine. Their job is to help you rotate and tilt your head. When you spend hours looking at a screen with your head pushed forward (sometimes called “tech neck”), these muscles have to contract constantly to keep your eyes level. That sustained effort creates trigger points, which are tight, painful knots that can refer pain upward into the back of your head, your temples, or even behind your eyes. Studies have linked this kind of trigger point pain specifically to forward head posture, especially in people who already get headaches.
Neck Problems (Cervicogenic Headaches)
Sometimes the pain starts not in the muscles themselves but in the joints, discs, or other structures of the upper cervical spine. These are called cervicogenic headaches, and they account for roughly 15 to 20 percent of all headaches. The one-year prevalence in the general population is relatively low, between 0.17 and 2.2 percent, but they’re disproportionately common in people with a history of neck injury or arthritis.
The hallmark of a cervicogenic headache is that it worsens when you move your neck in certain directions. You may notice reduced range of motion, and specific neck movements reliably trigger or intensify the pain. The headache typically starts on one side at the base of the skull and can spread forward. A key feature that separates this from a simple tension headache: when the underlying neck problem improves (through physical therapy, for instance), the headache improves in parallel.
Occipital Neuralgia
If the pain feels sharp, electric, or zapping rather than dull and achy, the cause may be irritation of the occipital nerves. Two greater occipital nerves travel from between the bones of the upper neck, thread through the muscles at the back of the head, and reach into the scalp nearly as far forward as the forehead. Lesser occipital nerves cover nearby areas.
When one of these nerves becomes irritated or compressed at any point along its path, it can produce shooting, stabbing pain that radiates from the base of the skull upward. Some people feel it shoot forward toward one eye. The scalp on the affected side can become extremely sensitive to even a light touch, like brushing your hair. Others experience numbness instead of or alongside the pain. Common causes of the nerve irritation include tight muscles, prior injury, or inflammation in the upper neck.
To confirm whether an occipital nerve is the source, doctors sometimes inject a small amount of local anesthetic near the nerve. If the pain disappears, it confirms the diagnosis and helps guide the treatment plan.
Exercise and Exertion Headaches
A headache that strikes during or immediately after intense physical activity often hits the back of the head. These primary exertion headaches typically last between five minutes and 48 hours. Activities most commonly linked to them include running, rowing, tennis, swimming, and weightlifting. The pain tends to be throbbing and bilateral.
Exertion headaches are usually harmless, but the first time you experience a sudden, severe headache during exercise, it’s worth getting it evaluated. A sudden onset headache that peaks immediately can occasionally signal a vascular problem that needs urgent attention.
Low Spinal Fluid Pressure
A less common but distinct cause is low cerebrospinal fluid (CSF) pressure, sometimes from a spinal fluid leak. The classic sign is a headache that worsens when you stand up and improves when you lie down. The pain can be dull or severe, throbbing or steady, and it frequently settles in the back of the head, though it can also spread across both sides or wrap around the entire skull.
The positional pattern isn’t always textbook. In some people, the delay between standing up and feeling pain can be much longer than the expected few minutes. Over time, the positional quality can fade entirely, transforming into a lingering daily headache that no longer obviously changes with posture. This evolution can make it harder to recognize.
How Posture Connects to Most of These
A thread running through several of these causes is the mechanical stress that modern habits place on the upper neck. When your head sits forward of your shoulders, the suboccipital muscles work overtime, the upper cervical joints bear more load, and the occipital nerves pass through tissue that’s chronically tightened. This single postural pattern can contribute to tension headaches, cervicogenic headaches, and occipital neuralgia simultaneously, which is one reason back-of-head pain can be frustratingly persistent if the posture isn’t addressed.
Manual therapy targeting the suboccipital muscles has been shown to decrease pain and improve quality of life in people with cervicogenic headaches. Interestingly, releasing muscles further down the spine in the mid and lower back can also help, because the muscles along the entire back of the body are connected through a continuous chain of tissue. Loosening tension at the bottom of that chain can reduce tightness at the top.
When Back-of-Head Pain Is a Red Flag
Most headaches in the back of the head are not dangerous, but certain features signal something more serious. The most important red flag is a sudden-onset headache that reaches maximum intensity almost immediately, sometimes called a thunderclap headache. This can point to a vascular emergency like an aneurysm and needs evaluation right away.
Other warning signs to take seriously:
- New neurological symptoms alongside the headache, such as weakness in an arm or leg, new numbness, or vision changes
- Fever, night sweats, or weight loss occurring with the headache, suggesting an underlying systemic illness
- First-ever headache after age 50, which is more likely to have a secondary cause
- Clear progression over weeks, with headaches becoming steadily more severe or more frequent
- Headache triggered by coughing, straining, or changing positions, which can indicate a pressure problem or structural issue
- New headache during or shortly after pregnancy, which warrants evaluation for vascular or hormonal causes
None of these features guarantee something dangerous is happening, but each one shifts the odds enough that it’s worth getting checked. A headache that follows a familiar, predictable pattern you’ve had many times before is far less concerning than one that feels new, different, or unusually intense.