Why One Ear Won't Equalize When Diving — And How to Fix It

Why One Ear Won't Equalize When Diving — And How to Fix It

If your right ear won't equalize while diving but your left does, you're not alone — roughly 30% of new divers experience unequal ear pressure, and it doesn't disqualify you from the sport. The problem usually stems from a slightly narrower or congested eustachian tube on one side, and it's fixable. Start by equalizing earlier and more frequently on descent than you think you need to — most divers wait until they feel pressure, which is too late. Try the Edmonds technique: pinch your nose, blow gently, tilt your head toward the stuffy ear, then away from it. Swallow immediately after to help the tube relax. If congestion is the culprit, a decongestant 30 minutes before the dive can help, but don't mask a deeper issue. The good news: your ears adapt. Most divers with one tricky ear solve this within 5–10 dives through technique refinement and familiarity.

What Causes One Ear to Resist Equalization?

Your eustachian tubes balance air pressure on both sides of your eardrum. They vary in diameter between people, and sometimes one side is narrower — just anatomy. Roughly 30% of new divers report asymmetrical equalization, but only 8% have genuine dysfunction requiring medical attention. The rest have congestion (temporary) or need better technique (fixable).

The Best Equalization Techniques When One Ear Is Stubborn

Edmonds Technique: Pinch your nose, blow gently, then tilt your head toward the problematic ear, then away. The head tilt shifts the tube angle just enough to open it.

Toynbee Maneuver: Pinch your nose and swallow. Gentler than blowing; works for roughly 40% of divers who struggle with standard Valsalva.

Frenzel Maneuver: Uses throat muscles instead of breath. Advanced, but rock-solid once learned. Your instructor can teach this in confined water.

Descent Protocol: Equalize at 50cm, then every meter for the first 5 meters. Slow descent (half-speed) gives your tubes more time to open. This simple change solves the problem for about 60% of divers with one tricky ear.

Why Pressure Imbalance Is Serious

Water pressure increases about 1 psi per meter. At 10 meters, the pressure difference is roughly 10 psi — enough to rupture your eardrum or damage inner ear structures. Pain starts at 1–2 meters; sharp pain means stop and ascend. Pushing through causes barotrauma, which can result in permanent hearing loss.

Equalization is simple prevention: early, frequent equalization = zero risk.

Red Flags — When to Stop Diving and See a Doctor

• Sharp pain (not just pressure) during or after descent → stop and ascend; see an ENT within 24 hours
• Fluid or pus leaking from your ear after the dive → infection or rupture; get medical attention
• Hearing loss or ringing after diving → inner ear damage; don't dive again until cleared by an ENT
• Persistent congestion after 24 hours → wait until your sinuses clear before the next dive
• One ear that never cooperates after 10+ dives with good technique → talk to an ENT about eustachian tube dysfunction

How to Prepare Your Next Dive

Before: Take a nasal decongestant 30–45 minutes before diving (pseudoephedrine, not antihistamines). Use a neti pot the night before. Avoid diving immediately after flights, when sinus pressure is worst.

During: Tell your instructor. Equalize at 50cm, then every meter for the first 5 meters. Use Edmonds or Toynbee instead of pinch-and-blow. Descend at half-speed.

After: Dry your ears thoroughly (don't use cotton swabs deep in the canal). Avoid pools or showers for a few hours.

Most divers adapt within 5–10 dives. Your brain learns to pre-equalize automatically.

The Bottom Line

Asymmetrical equalization is annoying but completely normal. You're on day one of your open water course — your ears haven't adapted yet. Refine your technique (try Edmonds if pinch-and-blow isn't working), equalize early and often, and talk to your instructor at your next session. In 5–10 dives, your stubborn ear will likely cooperate like it's been diving forever. This isn't a reason to quit; it's a detail to solve.

When you're ready to continue your training, mention the equalization issue to your instructor. And when you're planning your advanced course or next dive trip, browse certified schools on WeGoDive — filter by location and read reviews from divers who've actually trained there.