You slip below the surface, reach the first few feet, and one ear suddenly feels squeezed shut. Stop there. To learn how to equalize ears while diving, start before discomfort appears, use a gentle technique you have practiced with a certified instructor, and pause or ascend slightly if it does not work. Do not force it. Equalizing early and often is far easier than trying to clear an ear after pressure has built during a fast descent.
How to equalize ears while diving
As you descend, water pressure increases and pushes on the outside of each eardrum. Your middle ear needs added air through the Eustachian tubes, which connect the middle ear to the back of the nose and throat. That air movement is equalization. It is simple physics. If pressure is not balanced, the eardrum bends inward and can cause pain, reduced hearing, or injury. A successful equalization often feels like a soft click, pop, or release of pressure in one or both ears.
Begin while still on the surface, before putting your face down or starting the descent. Make your first equalization there. Then clear again every few feet or whenever you notice the first hint of pressure, especially during the initial part of the descent when relative pressure changes are greatest. Stay ahead. Descending slowly beside a line, mooring, wall, or attentive buddy gives you time to stop in a stable position instead of reacting after pain starts.
Use gentle techniques you have practiced
The technique that works best varies by diver, anatomy, congestion, and body position. A certified instructor can watch your posture and help you practice safely in confined water. Keep it gentle. Aggressive pressure can irritate the ears and make a difficult equalization worse, even if you feel tempted to push harder because the group is already descending.
- Swallow or wiggle the jaw: Move the jaw forward and side to side, then swallow. This may open the Eustachian tubes without adding pressure.
- Valsalva maneuver: Pinch your nostrils closed and blow very gently against the pinch for a brief moment. Use only enough pressure to feel a light release.
- Frenzel maneuver: Pinch the nose, close the throat, and use the tongue and back of the mouth to move a small amount of air upward. Many divers find this useful, but it takes coached practice.
- Toynbee maneuver: Pinch the nostrils and swallow. This can work well for some divers when a Valsalva feels ineffective.
Do not wait for pain before choosing one of these methods. Clear once, descend a little, then clear again. Repeat that rhythm. If you use a Valsalva, avoid a hard blast of air and avoid straining your chest or neck. The goal is to move a small amount of air into the middle ear, not to overpower a blockage with force.
Set up the descent for easier clearing
Your body position can change how easily your ears clear. Many divers find a feet-down descent easier than going head first because it reduces pressure and congestion around the Eustachian tube openings. Stay upright. If a descent line is available, hold it lightly while you equalize so buoyancy changes or current do not pull you deeper when you need to pause.
Plan for the first part of the descent to take longer than expected. Brief your buddy that you may need a moment for ears, agree on the stop signal, and maintain contact rather than rushing to match another diver’s speed. This is normal. A good buddy waits at a safe depth or returns with you, while the dive plan remains within the limits discussed during the briefing.
A properly fitting mask also helps because you need to pinch your nostrils cleanly through its nose pocket. Test this before entering the water. Thick gloves, a stiff mask skirt, or a poorly placed hood can make the pinch awkward, particularly in cold water, but no piece of gear can clear a blocked ear for you. Adjust equipment on the surface if possible.
Troubleshooting common issues
If one ear clears and the other does not, stop descending immediately. Signal your buddy. Hold your depth, relax your jaw, look slightly upward, and try swallowing or a gentle alternate technique. If it still will not clear, ascend a small amount until the pressure eases, then try again slowly. Never descend through pain. That is the point where a minor clearing issue can become an ear injury.
Sometimes repeated attempts seem to make the problem worse. Take a short pause. Hard repeated Valsalva attempts can swell tissues around the tube opening, leaving less room for air to pass. Try moving the jaw, swallowing, or switching to a slower feet-down position instead of increasing force. If you cannot equalize comfortably after a few calm attempts, end the descent and sit out that dive.
A blocked nose can make ear clearing unpredictable, even when you feel mostly well. Allergies, a cold, sinus irritation, poor sleep, dehydration, and recent respiratory illness may all affect how open the Eustachian tubes feel. Skip the dive if you are congested. Do not rely on decongestants to get you underwater unless a doctor who understands diving has advised you, since effects can wear off during the dive and medical suitability is individual.
Earplugs need special care. Standard solid earplugs can trap an air space in the outer ear and are generally not suitable for scuba diving. Avoid them. Some purpose-made vented products have specific instructions and fit limits, but they are not a substitute for learning to equalize, and you should discuss their use with a certified instructor before relying on them.
Handle problems during ascent and after the dive
Ears usually vent automatically during ascent as middle-ear air expands. Ascend slowly. If you feel pain, pressure, or worsening fullness on the way up, do not forcefully equalize or make a rapid ascent. Pause if conditions and your training allow, signal your buddy, and follow the ascent procedures taught by your instructor or dive professional. A reverse block can occur when expanding air does not escape easily.
After diving, mild temporary fullness can happen, but persistent pain, hearing loss, ringing, dizziness, fluid or blood from the ear, or vertigo needs prompt medical assessment. Do not dive again until you have been cleared. These symptoms can involve more than routine pressure discomfort, and internet advice cannot determine the cause or tell you when it is safe to return to the water.
Practice on dry land only in a gentle way, such as noticing whether swallowing, jaw movement, or a light nose-pinch technique opens your ears. Stop if it hurts. Then work on the skill during a supervised training session where you can remain shallow, upright, and relaxed. The best habit is uncomplicated: equalize before pressure builds, descend slowly, and turn the dive when your ears say no.
This article is for general informational purposes only and is not dive training or medical advice. Always train with a certified instructor and consult a doctor before diving if you have any health concerns. Gear specs, pricing, site conditions, and operator schedules change, so verify current details directly with the manufacturer or dive operator.
Disclosure: This post may contain affiliate links. If you click through and make a purchase, we may earn a commission at no extra cost to you. We only recommend gear we’ve researched or genuinely believe in.