Where does sinusitis pain radiate?

Where Does Sinusitis Pain Radiate?

Sinusitis pain location varies by which sinus is affected: maxillary sinusitis causes infraorbital/cheek pain that may radiate to the upper teeth; frontal sinusitis causes supraorbital/forehead pain; ethmoid sinusitis causes retro-orbital pain and medial canthal pressure; and sphenoid sinusitis causes retro-orbital, vertex, or occipital headache that can mimic intracranial hypertension. 1

Pain Patterns by Sinus Location

Maxillary Sinusitis

• Primary location: Unilateral or bilateral infraorbital pain over the cheekbone
• Radiation patterns:
  • Upper maxillary teeth (dental pain)
  • Ear (referred pain)
  • Buccal vestibule posterior to maxillary tuberosity 2
• Characteristics: Pain increases when bending head forward, often pulsatile, peaks in early evening and at night 1

Frontal Sinusitis

• Primary location: Supraorbital headache (forehead region)
• Mechanism: Ostial obstruction causes pressure decrease in sinus cavity (20-30 mm H2O), which directly causes pain symptoms 3
• Clinical significance: Higher propensity for intracranial complications due to anatomic location 3

Ethmoid Sinusitis

• Primary location: Retro-orbital pain, medial canthal region
• Associated findings: Filling of inner angle of eye, periorbital edema 1
• Note: Most frequently involved sinus due to ostiomeatal complex location 3

Sphenoid Sinusitis

• Primary location: Permanent retro-orbital headache
• Radiation patterns:
  • Vertex (top of head)
  • Occipital region 1, 4
• Characteristics: Focus, intensity, and permanence may simulate intracranial hypertension pain 1
• Anatomic concern: Adjacent to optic nerve, cavernous sinus, and carotid artery; greater risk of intracranial complications 3

Important Clinical Caveats

Pain Location Does NOT Predict Specific Sinus Involvement

Critical pitfall: While facial pain predicts bacterial rhinosinusitis diagnosis, the pain location correlates poorly with which specific sinuses are actually involved 5, 6. A prospective study found no relationship between patient-reported pain locations and CT findings in respective sinuses 7.

Recent Research on Sphenoid Pain Patterns

A 2025 multi-institutional study of unilateral sphenoid sinusitis found 4:

• Retrobulbar pain: 43.2% (most common)
• Frontal pain: 38.6%
• Occipital pain: 22.7%
• Vertex pain: minority of cases

Surgical intervention resolved pain in 75% of cases, with no clinical variables predicting pain presence or resolution.

Differential Diagnosis Considerations

Facial pain without purulent nasal drainage is NOT sinusitis 5, 6. Consider:

• Migraine headaches (often misdiagnosed as "sinus headache") 8
• Tension-type headache (symmetrical frontal/temporal, sometimes occipital) 8
• TMJ dysfunction (can mimic maxillary sinusitis with preauricular pain, facial pain to ear and teeth) 2
• Trigeminal neuralgia (may be associated with sinusitis but requires different treatment) 9

Cardinal Diagnostic Features Required

For acute bacterial rhinosinusitis diagnosis, pain must be accompanied by 5, 6:

• Purulent (not clear) nasal drainage, AND
• Nasal obstruction

Pain alone, regardless of location, is insufficient for diagnosis.

Physical Examination Findings

Look for 3:

• Tenderness overlying affected sinuses
• Periorbital edema or dark circles
• Purulent secretions in nasal cavity or posterior pharynx (most predictive finding)
• Facial swelling/erythema over involved sinus

Warning signs requiring urgent evaluation 3:

• Orbital swelling or pain
• Diplopia or abnormal extraocular movements
• Proptosis
• Swelling of forehead
• Any neurologic signs suggesting intracranial involvement