Frontal headaches, the kind you feel across your forehead or behind your eyes, are most commonly caused by tension-type headaches. But several other conditions produce pain in the same area, from sinus inflammation to eye strain to dehydration. Understanding the pattern of your pain, how long it lasts, and what comes with it can help you narrow down the cause.
Tension-Type Headaches
Tension-type headaches are the most frequent cause of frontal head pain. They produce a steady, pressing sensation across the forehead, sometimes extending to the temples and the back of the head. Unlike migraines, they don’t throb or pulse. Most people describe the feeling as a tight band wrapped around the skull.
The underlying problem involves increased tenderness in the muscles around the head and neck. The muscles across the forehead, temples, jaw, and upper back become tight and sensitive to pressure. This tenderness doesn’t just show up during a headache. It’s often present between episodes too, and it gets worse as headaches become more frequent or intense. Stress, poor posture, lack of sleep, and jaw clenching are the most common triggers.
For occasional tension headaches, over-the-counter pain relievers work well. A meta-analysis comparing anti-inflammatory drugs to acetaminophen found that at low doses, both were equally effective at relieving tension headache pain. Higher doses of anti-inflammatory drugs provided slightly more relief but also came with more side effects, so the tradeoff isn’t always worth it for a mild to moderate headache.
Sinus Pressure and Infection
Your frontal sinuses sit directly behind your forehead, which is why sinus problems produce pain right in that spot. When something irritates your sinuses (a cold, allergies, or a bacterial infection), the tissue swells and starts producing extra mucus. That mucus builds up, creating a warm, moist environment where bacteria and viruses thrive. The growing infection causes more swelling, which traps more mucus. The result is swollen, fluid-filled cavities pressing outward against the bones of your face and forehead.
The key difference between a sinus headache and other frontal headaches is that sinus pain comes with nasal symptoms: congestion, thick or discolored mucus, reduced sense of smell, and a feeling of fullness that gets worse when you bend forward. The pain also tends to be deeper and more localized, centered above your eyebrows or across the bridge of your nose. If you have frontal pressure without any nasal congestion or discharge, it’s likely not your sinuses.
Eye Strain From Screens
Hours of screen time can produce a dull ache across the forehead and behind the eyes. The reason is that your eyes are working harder than you realize. The text on digital screens is made up of tiny pixels, and your eyes are constantly focusing and refocusing to resolve those dots into sharp letters. That continuous micro-adjustment fatigues the muscles inside the eye responsible for focusing, producing pain that radiates into the forehead.
Screen-related frontal headaches typically build gradually over the course of a work session and improve once you step away. They’re more common if you’re working in poor lighting, sitting too close to your monitor, or going long stretches without looking away from the screen. The 20-20-20 rule (every 20 minutes, look at something 20 feet away for 20 seconds) gives those focusing muscles regular breaks.
Dehydration
When your body loses more fluid than it takes in, your brain physically shrinks. As it contracts, it pulls away from the skull, putting tension on the pain-sensitive nerves surrounding it. This produces a headache that can be felt across the entire head but is often most noticeable in the front.
Dehydration headaches tend to get worse with movement, bending over, or walking. They often come alongside thirst, dark urine, fatigue, and dizziness. The fix is straightforward: rehydrating usually resolves the headache within one to three hours, though severe dehydration takes longer to correct.
Caffeine Withdrawal
If you regularly drink coffee or tea and suddenly stop, or even cut back significantly, a withdrawal headache can set in within 12 to 24 hours after your last dose. These headaches peak between 20 and 51 hours after cessation and can persist for 2 to 9 days. They tend to be bilateral (felt on both sides of the head), throbbing, and sometimes severe enough to mimic a migraine.
The mechanism is vascular. Caffeine narrows blood vessels in the brain, and your body adjusts to that as a baseline. When caffeine is removed, those vessels dilate rapidly, increasing blood flow and creating pressure. If you’re trying to reduce your caffeine intake, tapering gradually over a week or two can prevent or minimize these headaches.
Migraines With Frontal Pain
Migraines are often described as one-sided, but they can absolutely present as frontal pain, centered behind one or both eyes or across the forehead. What distinguishes a migraine from a tension headache is the quality of the pain: migraines throb or pulse, and they bring along a package of other symptoms. Sensitivity to light, sound, and sometimes smell or touch is typical. Nausea and vomiting are common, and physical activity makes the pain worse rather than having no effect.
Migraines also last longer than most other frontal headaches, typically 4 to 72 hours if untreated. Some people experience an aura beforehand, which can include visual disturbances like flashing lights or zigzag lines, though most migraines occur without aura.
Cluster Headaches
Cluster headaches are rare but produce some of the most intense pain a person can experience. The pain is strictly one-sided, centered around or behind one eye, and often radiates into the forehead and temple on that same side. Each attack lasts between 15 minutes and 3 hours, and they recur in clusters, sometimes striking one to eight times per day for weeks or months before disappearing entirely.
What makes cluster headaches distinctive is the set of autonomic symptoms that accompany the pain: a red or watering eye on the affected side, a drooping eyelid, nasal congestion or a runny nose on one side, and sweating across the forehead. People with cluster headaches also tend to feel intensely restless or agitated during an attack, pacing or rocking rather than lying still. These headaches follow a clock-like pattern, often striking at the same time each day, particularly during the night.
Giant Cell Arteritis in Older Adults
In people over 50, and especially between the ages of 70 and 80, a new persistent headache in the temples or forehead can signal giant cell arteritis. This is inflammation of the blood vessels running along the temples and forehead. The headache is typically severe, progressive, and accompanied by scalp tenderness (it may hurt to brush your hair or rest your head on a pillow). Jaw pain when chewing is another hallmark symptom.
Giant cell arteritis requires prompt treatment because the same inflammation that causes the headache can restrict blood flow to the eyes, leading to sudden vision loss or double vision. Anyone over 50 with a new, severe headache alongside scalp tenderness or jaw pain should be evaluated quickly.
When Frontal Headaches Signal Something Serious
Most frontal headaches are benign, but certain features warrant urgent attention. Neurologists use a screening framework that flags the following patterns as potential signs of a secondary cause:
- Sudden, explosive onset: a headache that reaches maximum intensity within seconds, sometimes called a thunderclap headache
- New headache after age 65
- A change in an established headache pattern, or a headache that feels fundamentally different from your usual type
- Headache with neurologic symptoms like weakness, confusion, vision changes, or trouble speaking
- Headache with fever and no clear source of infection
- Headache triggered by coughing, sneezing, or exertion
- Progressive worsening over days or weeks without responding to typical treatment
- Headache following head injury
Any of these features suggest the headache may be a symptom of something other than a primary headache disorder, and imaging or further evaluation is appropriate.