Ears and Altitude
What Kilimanjaro Does to Your Ears. Why barotrauma happens, how to treat it, and when it signals something more serious.
Somewhere between base camp and the summit, most Kilimanjaro climbers notice their ears feel full — as if they are underwater. A gentle pop becomes a persistent block. Chewing gum stops working. By the time they reach Stella Point, the muffled sound and pressure are unmistakable.
This is ear barotrauma — a pressure imbalance between the middle ear and the outside atmosphere. It is one of the most common physical discomforts on Kilimanjaro, and one of the least discussed. Unlike altitude sickness, which has extensive coverage, ear pressure at altitude rarely gets more than a passing mention in packing guides.
Why Your Ears Block on Kilimanjaro
Your middle ear is a sealed cavity behind the eardrum, connected to the back of your throat by the Eustachian tube. Under normal conditions at sea level, the Eustachian tube opens briefly when you yawn, swallow, or chew, letting air in and out to equalise pressure. When pressure outside your body changes faster than the tube can compensate, the imbalance stretches the eardrum — causing pain, fullness, and muffled hearing.
On Kilimanjaro, the problem is acute because of the speed of ascent. Summit night — the final push from Barafu Camp at 4,600m to Uhuru Peak at 5,895m — involves climbing roughly 1,295m in 8-12 hours, much of it at night when temperatures are coldest and barometric pressure drops fastest. Climbers ascend faster than their Eustachian tubes can adapt, and ear block becomes almost universal.
The Barafu Camp night is the most common trigger point. Climbers who arrive at Barafu with even a mild upper respiratory infection — common after several days at altitude — are at higher risk, as mucosal swelling narrows the Eustachian tube opening. This is why pre-climb health matters: a blocked nose on the mountain means blocked ears.
Symptoms — Mild to Serious
Ear barotrauma on Kilimanjaro ranges from a minor annoyance to a symptom that requires stopping the climb. Most cases fall in the mild-to-moderate range and resolve with simple techniques or descent.
Mild Ear Barotrauma
- •Ear fullness or a sensation of being underwater
- •Muffled or slightly reduced hearing
- •A mild pop when swallowing or yawning
- •No pain, or only very mild discomfort
Moderate Ear Barotrauma
- •Sharp or stabbing ear pain that worsens with descent
- •Significant hearing reduction — conversation is difficult
- •Pressure that does not resolve with swallowing
- •Pain radiating toward the jaw or temple
Severe (rare) Ear Barotrauma
- •Vertigo — room spinning or loss of balance
- •Nausea or vomiting alongside ear symptoms
- •Acute hearing loss rather than muffling
- •Ringing (tinnitus) that is new and loud
Is it ear barotrauma — or altitude sickness?
Ear barotrauma and altitude sickness are different conditions but can occur simultaneously. Altitude sickness (AMS) produces headache, nausea, fatigue, and dizziness — symptoms that are not caused by ear pressure alone. If you have ear fullness plus a headache that does not resolve when your ears pop, you may have both conditions. See our altitude sickness guide for the full symptom checklist.
Prevention Strategies
You cannot fully prevent ear barotrauma on Kilimanjaro — the altitude change is simply too rapid on summit night. But three strategies meaningfully reduce the severity.
Descend Gradually During Acclimatisation Hikes
Every acclimatisation day — where you hike high and sleep low — is also an opportunity to equalise ear pressure gently over hours rather than minutes. Do not skip acclimatisation hikes even if you feel fine. The slow pressure change trains your Eustachian tubes.
Chew, Yawn, and Swallow Intentionally on Summit Night
On the ascent from Barafu, chew gum, suck on lozenges, or yawn deliberately every few minutes. Do not wait for your ears to block — stay ahead of it. Keep your mouth moving from the moment you leave camp. This is not guaranteed to prevent blockage, but it reduces the speed at which pressure builds.
Consider Pseudoephedrine (Sudafed) Before Summit Night
Pseudoephedrine is a decongestant that reduces swelling in the mucosal lining of the Eustachian tube, making equalisation easier. A 30-60mg dose taken 30 minutes before the summit push can help. It is contraindicated for people with high blood pressure, heart arrhythmias, or anxiety disorders. If you are unsure, consult your doctor before the climb. See our gear checklist for the full pre-climb medication list.
Use Specialised Pressure-Equalising Earplugs
Earplugs designed for flying — such as EarPlanes or Doc's ProPlugs — slow the rate of pressure change reaching the eardrum, giving the Eustachian tube more time to equalise. Standard foam earplugs do not provide this benefit. Insert them before leaving Barafu Camp and keep them in through the descent.
What to Do If Your Ears Will Not Unpop
If your ears are blocked and the techniques above are not working, work through these steps in order. Most cases resolve at step 1 or 2.
Yawn or pretend to yawn
A genuine yawn opens the Eustachian tube more forcefully than swallowing alone. If a real yawn does not come, open your mouth as wide as possible and hold it for 5 seconds. Repeat 5-10 times.
Try the Valsalva maneuver
Pinch your nose shut, close your mouth, and gently blow as if you were trying to inflate your ears — not your cheeks. Hold for 5-10 seconds. Release. Repeat 2-3 times. Do not blow forcefully — you are equalising pressure, not testing the eardrum's strength.
Drink water and swallow frequently
Sipping water or swallowing saliva while leaning your head to one side (ear toward shoulder) can help open the tube on that side. Combine with chewing.
If on summit night: do not delay descent for ears alone
Ear block alone — without vertigo, acute hearing loss, or signs of altitude sickness — is not a summit-or-bust decision. However, if your ears will not equalise and you are also experiencing headache, nausea, or confusion, the combined picture requires immediate descent. Tell your guide.
When to Tell Your Guide
If ear blockage is accompanied by vertigo, vomiting, new tinnitus, or any hearing loss beyond muffled sound — tell your guide immediately. These symptoms suggest something beyond simple barotrauma and require assessment. Your guide will advise whether to continue or begin descent.
After the Climb
For the vast majority of climbers, ear blockage resolves within minutes to hours of reaching lower altitude. The descent from Kilimanjaro — whether via Moshi or Arusha — usually provides rapid equalisation as barometric pressure increases.
If muffled hearing, fullness, or mild pain persists for more than 48 hours after returning to low altitude, see a doctor — specifically an ENT (Ear, Nose, and Throat) specialist. In rare cases, persistent blockage can indicate middle ear fluid accumulation or a barotrauma injury to the eardrum itself. These are treatable with decongestants, nasal steroids, or in persistent cases, a minor procedure to drain fluid.
Long-term hearing damage from Kilimanjaro barotrauma is extremely uncommon. The body is remarkably adaptable, and the Eustachian tube's function typically returns fully after descent. The risk is concentrated in the short window of the climb itself — not in lasting effects.
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Message Us on WhatsAppFrequently Asked Questions
Why do my ears block on Kilimanjaro?
Your ears block because of barotrauma — a pressure imbalance between the middle ear and the outside atmosphere. The Eustachian tube, which equalises pressure, struggles to keep up with Kilimanjaro's rapid altitude changes. This is most intense on summit night, where climbers ascend from 4,600m to 5,895m in darkness over 8-12 hours.
Can ear barotrauma on Kilimanjaro cause permanent hearing loss?
Permanent hearing loss from ear barotrauma on Kilimanjaro is extremely rare. Most cases resolve within hours of descent. If muffled hearing or fullness persists more than 48 hours after returning to low altitude, see an ENT specialist — but the vast majority of climbers recover fully with no lasting damage.
What is the Valsalva maneuver and does it help on Kilimanjaro?
The Valsalva maneuver involves pinching your nose, closing your mouth, and gently blowing as if you were trying to inflate your ears. This raises pressure in the middle ear and can pop a blocked Eustachian tube. It is safe to perform on the mountain. Do not blow forcefully — this can damage the eardrum. Yawning and chewing are gentler first-line alternatives.
Should I take Sudafed before climbing Kilimanjaro for ear pressure?
Pseudoephedrine (Sudafed) can help by reducing swelling in the Eustachian tube lining, making equalisation easier. The standard dose is 30-60mg taken 30 minutes before ascent or before the summit push. It is contraindicated for people with high blood pressure, heart conditions, or anxiety disorders. Consult your doctor before using it on the mountain.
How is ear barotrauma different from altitude sickness?
Ear barotrauma is a pressure problem in the middle ear; altitude sickness (AMS/HACE/HAPE) is an oxygen problem affecting the whole body. Ear symptoms — popping, fullness, muffled hearing — are localised to the ears and do not include headache, nausea, or confusion, which are hallmarks of altitude sickness. However, both conditions can occur simultaneously on Kilimanjaro.
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