Pain focused above one eye usually traces to one of a handful of causes, ranging from a simple sinus issue or tension headache to nerve irritation or an eye condition that refers pain upward into the brow. The left-side specificity matters less than you might think; most of the conditions that cause this pain can occur on either side, and which side lights up is often just anatomical luck. What distinguishes one cause from another is the character of the pain, how long it lasts, and what other symptoms ride along with it.
Frontal Sinusitis
The frontal sinuses sit directly behind the lower part of your forehead, just above each eye. When one becomes inflamed or infected, the pain lands right in that spot. Frontal sinusitis affects roughly 15% of adults and typically shows up as a headache over the forehead along with fever, fatigue, and tenderness when you press along the inner edge of the brow bone.1PubMed Central. The serious complications of frontal sinusitis, a case series and literature review The pain often gets worse when you lean forward, because the shift in position increases pressure inside the sinus cavity. It can be one-sided if only the left frontal sinus is blocked, which would explain why the discomfort sits specifically above your left eye.
A cold or upper respiratory infection is the usual starting point: swollen nasal tissue blocks the narrow drainage passage from the sinus, fluid builds up, and bacteria or viruses move in. If the pain persists beyond ten days, is accompanied by thick discolored nasal discharge, or returns after seeming to improve, those are signs that a bacterial infection has taken hold and you may need antibiotics. Most viral cases, though, clear on their own with decongestants, steam, and time.
Migraine and Tension-Type Headache
Migraine is one of the most common reasons for recurring pain around one eye. A migraine attack often targets one side of the head, and the periorbital area (the zone around and above the eye) is a frequent hot spot. Throbbing or pulsing quality, sensitivity to light or sound, and nausea are the classic companions. Episodes can last anywhere from a few hours to three days. Many people with migraine describe the worst pain as sitting “behind” or “above” the eye, and it can easily be mistaken for a sinus headache, especially if the attack brings nasal congestion or tearing on the affected side.
Tension-type headache is less dramatic but far more common. The pain tends to feel like a band of pressure wrapping around the head, but it can concentrate in the forehead and brow area. When muscle tightness in the temples, forehead, or neck is worse on one side, you may feel it predominantly above one eye. Research has shown that trigger points in the head, neck, and shoulder muscles can reproduce the exact pain pattern of tension-type headache, with referred pain radiating into the forehead and periorbital region.2PubMed Central. Referred pain from myofascial trigger points in head and neck-shoulder muscles reproduces head pain features in children with chronic tension type headache In practical terms, this means a tight knot in a neck or temple muscle can make it feel like the problem is above your eye when the actual source is a few inches away.
Cluster Headache
If the pain above your left eye is extraordinarily intense, arrives in bouts lasting 15 minutes to three hours, and is accompanied by a watery or red eye, a drooping eyelid, or a stuffy nostril on the same side, you may be dealing with cluster headache. This condition is characterized by recurrent short-lasting attacks of excruciating one-sided periorbital pain along with autonomic symptoms on the affected side, including tearing, nasal congestion, eyelid swelling, and pupil constriction.3PubMed Central. Cluster headache The attacks tend to cluster in cycles lasting weeks or months, often striking at the same time of day or night, and then remitting for months or years before returning.
Cluster headache is far less common than migraine but is sometimes called one of the most painful conditions known. People during an attack typically cannot lie still; pacing or rocking is more characteristic than lying down in a dark room (which is the migraine pattern). The one-sided, above-the-eye location is so consistent that if you experience a series of these intense, clock-like attacks, cluster headache should be high on your list to discuss with a doctor. High-flow oxygen and specific prescription medications can abort attacks, but over-the-counter painkillers are generally useless because the attacks peak and begin to fade before a standard painkiller can take effect.
Supraorbital Neuralgia
Running through a small notch or hole in the bone right at the top of each eye socket is the supraorbital nerve, which supplies sensation to the forehead and upper eyelid. When this nerve gets irritated or pinched, it causes a condition called supraorbital neuralgia. The hallmarks are pain in or just above the eyebrow, tenderness when you press on the notch at the inner edge of the brow bone, and temporary relief if the nerve is numbed with a local anesthetic injection.4PubMed Central. Trigeminal neuralgia involving supraorbital and infraorbital nerves The pain can be constant or come and go, and it stays localized to one side.
Supraorbital neuralgia accounts for a relatively small share of headache diagnoses, but it is probably underrecognized because the symptoms overlap with migraine and tension headache. One distinguishing feature is that pressing firmly on the supraorbital notch (about an inch in from the inner corner of your eyebrow) reproduces or worsens the pain. If you notice that pressing that spot is distinctly tender compared to the same spot on the other side, it is worth mentioning to your doctor. Treatment can be as simple as avoiding whatever is compressing the nerve (a tight hat, safety goggles, a helmet strap) or, in stubborn cases, a nerve block injection.
Anatomical variation matters here too. Some people have a closed bony hole (a foramen) where others have an open notch for the supraorbital nerve to pass through, and research using CT imaging has found that nerve compression at these bony passages contributes to migraine-like headache symptoms on the frontal side of the head.5PubMed. Computerized tomographic evaluation of supraorbital notches and foramen in patients with frontal migraine headaches and correlation with clinical symptoms In other words, the shape of your skull at that one tiny point can make you more susceptible to pain above the eye.
Trigeminal Neuralgia Affecting the Eye Branch
The supraorbital nerve is a branch of a larger system: the trigeminal nerve, which is the main sensory nerve for your face. Trigeminal neuralgia is a well-known condition that causes severe, shock-like facial pain, usually along the cheek or jaw. Less commonly, the uppermost division of the trigeminal nerve (called the ophthalmic branch, which covers the forehead and eye area) is the one affected. In one documented case, a patient with a history of migraines developed a new pattern of severe, brief, stabbing pains around the left eye that lasted only seconds and recurred every few minutes; imaging confirmed ophthalmic-branch trigeminal neuralgia.6PubMed Central. A Case of Ophthalmic Branch Trigeminal Neuralgia in the Emergency Department
The pain in trigeminal neuralgia is usually electric or stabbing and extremely brief, on the order of seconds per jolt. That ultra-short duration helps distinguish it from migraine (which lasts hours) and cluster headache (which lasts at least 15 minutes). Triggers can be as minor as a breeze on the face, touching the forehead, or talking. Medications that calm nerve firing are the first-line treatment, and surgical options exist for cases that do not respond.
Primary Stabbing Headache
Sometimes called “ice pick headache,” primary stabbing headache produces ultra-brief stabs of pain, most commonly in the frontal or temporal area.7PubMed. Ice Pick Headache Each jab lasts a fraction of a second to a few seconds, and they come unpredictably. These are harmless but alarming, because a sudden sharp pain above the eye understandably makes people worry about something serious. Primary stabbing headache is more common in people who also get migraines, and it tends to move around rather than always hitting the same spot, though it can repeatedly strike above one eye for a stretch.
Because the stabs are so brief, they are usually over before you could take any medication. For people who get frequent attacks, preventive medications can reduce their frequency. The key practical point is that if you are experiencing momentary jabs of sharp pain above the eye with no other symptoms and no abnormalities on examination, this is a likely and benign explanation.
Eye Conditions That Cause Brow Pain
Your eye itself can be the source. Uncorrected refractive errors (needing glasses or an updated prescription) are a surprisingly common cause of mild, recurring headache above the eyes. Research classifies these as frontal headaches that are absent on waking and get worse with prolonged visual tasks like reading or screen work.8PubMed Central. Exploring Correlations between Headaches and Refractive Errors in an Optometry Clinic Sample The mechanism involves strain on the muscles that focus the lens, which sends a referred pain signal through the ophthalmic branch of the trigeminal nerve into the forehead. If the pain reliably shows up after hours of close work and goes away on weekends or holidays, an eye exam is a reasonable first step.
A less common but more urgent eye-related cause is acute angle-closure glaucoma, where pressure inside the eye rises suddenly. This produces severe pain in and around the eye, blurred vision, halos around lights, and sometimes nausea. It is an emergency that requires immediate treatment to prevent permanent vision loss. Trochleitis, inflammation of the trochlea (a small pulley-like structure in the inner upper corner of the eye socket through which one of the eye muscles passes), has also been recognized as a cause of localized eye and periorbital pain that can trigger migraine-like headaches.9PubMed Central. The effect of nonsteroidal anti-inflammatory drugs on eye pain and migraine headache caused by trochleitis The tenderness in trochleitis is very specific: pressing on the inner upper rim of the eye socket reproduces the pain.
Mucosal Contact Points Inside the Nose
Here is one that many people have never heard of. Inside your nose, the nasal septum (the wall dividing the two sides) can deviate or develop small bony spurs that press against the turbinates (the curled shelves of tissue on the outer wall of each nasal passage). When the mucous membranes of these structures touch and press against each other, the contact point can generate pain that is felt above the eye, in the forehead, or around the cheekbone. This happens because the nerve supply to the lateral nasal wall comes from branches of the ophthalmic and maxillary divisions of the trigeminal nerve, so a stimulus inside the nose gets interpreted as pain in the forehead.10PubMed Central. Higher incidence of headache in patients with intermittent mucosal contact points between the septum and lateral nasal wall
Rhinogenic contact point headache, as it is formally known, occurs in the absence of infection, polyps, or other visible sinus disease. The most commonly observed anatomical variations behind it are a deviated septum, a septal spur, and a concha bullosa (an air cell inside the middle turbinate that makes it balloon outward).11PubMed. Rhinogenic Contact Point Headache: Surgical Treatment Versus Medical Treatment What makes this diagnosis tricky is that a CT scan of the sinuses might look “clean” since there is no fluid or infection, yet the structural contact is quietly causing recurring headaches. A topical anesthetic applied inside the nose at the suspected contact point can confirm the diagnosis: if the headache disappears while the area is numb, the contact point is likely the culprit. Surgical correction of the deviation or spur can provide lasting relief in confirmed cases.
External Compression and Mechanical Causes
Something as mundane as a tight hat, swim goggles, a headband, or a VR headset pressing on the forehead can activate the superficial nerves of the scalp and face, producing a headache concentrated right where the pressure sits.12PubMed Central. Primary Headache Attributed to External Compression or Traction to the Head: A Narrative Review If the pressure happens to land on or near the supraorbital nerve above one eye, the pain can be remarkably focused and feel more ominous than its cause warrants. The fix is obvious once you make the connection, but many people do not think to blame a headband or helmet because the pain lingers after the item is removed. The nerve can stay irritated for hours or even a day or two after sustained compression.
Sleeping position can play a similar role. If you always sleep on your left side and press your forehead against a firm pillow or your own arm, sustained pressure on the supraorbital region overnight can produce a headache that is present on waking and misleadingly suggests sinusitis. Changing pillows or sleeping positions can test this theory cheaply.
Frontal Sinus Osteomas
An osteoma is a slow-growing, benign bony growth. Frontal sinus osteomas are usually discovered incidentally on imaging done for something else, and most are asymptomatic. When they do become large enough to cause trouble, headache is the most common complaint, often described as a feeling of pressure in the forehead.13PubMed Central. The Analysis of Patients Operated for Frontal Sinus Osteomas In some cases, even a small osteoma can cause persistent headache by blocking the sinus drainage pathway or pressing on the sinus wall.14PubMed. A small osteoma of the frontal sinus causing headaches Larger osteomas may gradually increase in size over years, eventually producing more frequent headache and a sense of forehead pressure.15PubMed. Frontal sinus osteoma: a difficult surgical decision in the era of endoscopic sinus surgery
This is not a common cause, but it is relevant if your above-the-eye pain is chronic, always on the same side, and has not responded to treatment for migraine, tension headache, or sinusitis. A CT scan of the sinuses can easily pick up an osteoma. Surgical removal is straightforward and curative when the growth is causing symptoms.
Giant Cell Arteritis
For anyone over 50 with new-onset pain above the eye, especially if it is accompanied by scalp tenderness, jaw pain when chewing, fatigue, or changes in vision, giant cell arteritis (also called temporal arteritis) needs to be ruled out quickly. This is a condition in which the walls of medium and large arteries become inflamed, and it predominantly affects older adults.16PubMed. Scalp necrosis in temporal arteritis The temporal artery runs along the side of the forehead, and when it is inflamed, pain can localize above and around the eye. The danger is that untreated giant cell arteritis can cause sudden, permanent vision loss in the affected eye. Blood tests (looking for elevated inflammatory markers) and a temporal artery biopsy confirm the diagnosis, and corticosteroids are started immediately when it is suspected, sometimes even before biopsy results come back, to protect the vision.
How to Sort Through the Possibilities
With so many potential causes, a few practical questions can narrow things down before you ever see a doctor:
- Duration of each episode: Seconds (primary stabbing headache, trigeminal neuralgia), 15 minutes to 3 hours (cluster headache), 4 to 72 hours (migraine), or constant over days to weeks (sinusitis, supraorbital neuralgia, osteoma).
- Pain character: Throbbing or pulsing suggests migraine. A sharp electric jolt points to nerve pain. Dull pressure that worsens when leaning forward is classic for sinus disease. A deep ache worsened by near-work implicates eyestrain.
- Accompanying symptoms: Tearing, eyelid droop, or nasal congestion on the same side points to cluster headache. Nausea and light sensitivity point to migraine. Fever and colored nasal discharge point to sinusitis. Vision changes demand urgent evaluation.
- Tenderness to touch: If pressing on the brow notch reproduces the pain, supraorbital neuralgia is likely. If the scalp itself is tender in someone over 50, giant cell arteritis needs to be excluded.
Keep in mind that these categories are not always mutually exclusive. Someone with a deviated septum causing contact-point headaches may also get migraines, and distinguishing which headache is which on a given day can take careful attention to patterns. A headache diary noting time of day, duration, associated symptoms, and triggers can be genuinely useful for pinpointing what is happening, both for your own understanding and to give a clinician something concrete to work with.
When the Cause Is Not Where the Pain Is
One of the more frustrating aspects of above-the-eye pain is that the source is sometimes nowhere near the forehead. Tight muscles in the neck, at the base of the skull, or along the temples can send referred pain forward into the brow and periorbital area. Trigger points in these muscles have been shown to reproduce the exact pain pattern of chronic headaches felt in the forehead.2PubMed Central. Referred pain from myofascial trigger points in head and neck-shoulder muscles reproduces head pain features in children with chronic tension type headache Similarly, nasal contact points deep inside the nose refer pain upward through shared nerve pathways, and eye conditions like trochleitis produce pain that seems to sit in the bone above the eye rather than in the eye socket itself. The general principle is that the trigeminal nerve’s branches cover the forehead, nose, and eye, and a problem anywhere along its territory can masquerade as pain somewhere else in that territory. If direct treatment of the forehead area is not working, looking further afield (neck muscles, nasal anatomy, eye function) is often the step that finally cracks the case.