Woman’s Nose-Blowing Sent Air Through Her Ear and Into Her Skull, Case Report Says

A woman in her early 70s was taking a shower when she blew her nose to relieve pressure and a crackling sensation in her left ear. She later arrived at an emergency department with a headache and vital signs that suggested dangerously elevated pressure inside the skull. A CT scan found a large amount of air collected around her brainstem.

The case was published in the October issue of The American Journal of Emergency Medicine and first appeared online June 3. Physicians affiliated with Virginia Tech Carilion’s Department of Emergency Medicine in Roanoke, Virginia, described the condition as pneumocephalus, or air inside the skull, following nose blowing. What made the report unusual was the apparent path the air took: through the ear.

A Shower, Ear Pressure and a Sudden Headache

The patient had a medical history that included high blood pressure, high cholesterol, acid reflux, major depressive disorder, chronic migraines treated by a neurologist, and previous cataract surgery. Her primary care clinician referred her to a rural emergency department for evaluation of a headache.

She told medical staff that the symptoms began that morning while she was showering and blew her nose to clear her ears.

At triage, clinicians noted a slow heart rate, elevated blood pressure and rapid breathing.

Vital Signs Pointed to Rising Intracranial Pressure

The report centers on Cushing’s reflex, a physiological response to increasing pressure within the skull. The classic Cushing’s triad includes widened pulse pressure, a slow heart rate and abnormal breathing. The authors described the pattern as a serious warning sign of raised intracranial pressure and possible impending brainstem herniation.

Pneumocephalus is generally divided into simple and tension types. Simple pneumocephalus may cause few or no symptoms. Tension pneumocephalus occurs when trapped air builds pressure and can lead to confusion, cardiorespiratory arrest and signs of Cushing’s triad.

A StatPearls clinical review describes tension pneumocephalus as life-threatening. When air collects in the posterior fossa, the rear compartment of the skull that contains the brainstem, it can cause brainstem symptoms, breathing problems and cardiac arrest. The review notes that outcomes are generally favorable when treatment is provided promptly, even in tension cases.

An Uncommon Pathway Through the Ear

The woman’s CT scan showed extensive air around the brainstem, along with pressure on the structure. Imaging also revealed a visible route extending from the external ear canal through the internal auditory canal, the bony passage that carries hearing and balance nerves, and into the infratentorial space, the lower compartment of the skull.

Additional imaging identified a defect in her left round window, a membrane-covered opening between the middle ear and inner ear. The authors concluded that the defect likely allowed air to pass into the skull.

That route is unusual. A StatPearls review describes a more common mechanism in which nose blowing, coughing or sneezing suddenly increases pressure in the sinuses, allowing air to enter through defects at the skull base. The Virginia clinicians noted that earlier reports of spontaneous pneumocephalus triggered by nose blowing typically involved skull-base defects.

However, the ear has been implicated in other cases. One report described spontaneous otogenic pneumocephalus, meaning air reached the skull through the ear, in a young woman who repeatedly performed Valsalva maneuvers to improve Eustachian tube function. A 2024 report linked spontaneous otogenic pneumocephalus to air travel.

Rare Event, but Sudden Headaches Deserve Attention

The authors emphasized how uncommon the event was. About 75% of pneumocephalus cases are associated with traumatic skull injury or cranial surgery, they wrote, and they cited only four previous reports of pneumocephalus after sneezing or nose blowing. The publicly available abstract focuses on the patient’s presentation, imaging findings and management considerations, but does not describe her outcome.

The rarity is important. People blow their noses routinely without complications, and the Virginia authors describe acute pneumocephalus after nose blowing as an uncommon condition.

Still, the case offers a clinical reminder: pneumocephalus should remain a possible explanation for a sudden-onset headache, even when a patient has no history of trauma.

For the general public, the key issue is recognizing warning symptoms. A sudden, severe headache, especially when accompanied by confusion, breathing changes or clear fluid draining from the nose or ear, requires emergency medical attention. People with prior ear or skull-base surgery, or those who know they have a defect in those areas, can ask a clinician whether specific precautions are appropriate.

Key Questions Answered

What happened to the woman?

After blowing her nose in the shower to relieve ear pressure, she developed a headache. A CT scan showed extensive air inside her skull around the brainstem.

How did the air enter her skull?

Imaging showed a pathway from her ear canal through the internal auditory canal into the lower part of the skull. Doctors also found a defect in her left round window, an opening between the middle ear and inner ear.

What is Cushing’s triad, and why is it important?

Cushing’s triad is a combination of widened pulse pressure, a slow heart rate and irregular breathing. It can be a serious sign of increased pressure inside the skull and possible brainstem compression.

How common is pneumocephalus after nose blowing?

It is very rare. The authors cited only four earlier reports of pneumocephalus after sneezing or nose blowing, while about 75% of cases are linked to skull trauma or cranial surgery.

Is blowing your nose safe?

For most people, yes. This case involved an unusual ear defect. People with previous ear or skull-base surgery, or known defects in those areas, should ask a clinician about precautions.

Which symptoms require urgent care?

A sudden, severe headache, particularly with confusion, breathing changes or fluid draining from the nose or ear, should be treated as an emergency.

Source link