Equalizing your ears when diving means adding air to your middle ear to match rising water pressure. Equalize early, equalize often, and never force a descent through pain. Discomfort is a signal to stop and ascend slightly, not to push harder.
Why do my ears hurt on descent when diving?
Water pressure rises fast in the first few feet, faster than at any other point in a dive.
Your middle ear is an air space behind the eardrum connected to your throat by the Eustachian tube.
If you do not add air to that space as pressure rises, the eardrum flexes inward, which is the pain
you feel.
The critical detail is that the sharpest pressure change happens shallow. Most ear injuries occur
in the first few feet, not deep.
What ear equalizing techniques work when diving?
- Valsalva. Pinch your nose and gently blow against it. The most taught method
and the easiest to overdo. - Toynbee. Pinch your nose and swallow. Gentler and often effective.
- Frenzel. Pinch your nose and use your tongue to push air upward. More precise
and worth learning, though it takes practice. - Jaw and swallow movements. Wiggling the jaw and swallowing regularly keeps the
tube open and prevents problems before they start.
Gently is the operative word throughout. Forceful Valsalva can injure the inner ear.
What rules prevent ear injuries when diving?
- Equalize before you feel pressure. Start at the surface and continue every
few feet on the way down. - Descend feet first where you can. It is easier than head down.
- Stop at the first discomfort. Ascend slightly, equalize, then continue.
- Never force it. If an ear will not clear, the dive ends. That is a normal
outcome, not a failure. - Do not dive congested. A cold or allergies make equalizing unreliable, and
decongestants wearing off at depth create a reverse block on ascent.
When it will not clear
Sometimes one ear simply will not equalize. Ascend a few feet, tilt the blocked ear
upward, swallow and try gently again. If it still will not clear, end the dive. Divers who push
through are the ones who end up with barotrauma and weeks out of the water.
A reverse block, where air cannot escape on ascent, is more alarming and needs a slow ascent
rather than a fast one. Health guidance for divers, including on ear problems and fitness to dive,
is published by the Divers Alert Network health resources.
Key takeaways
- The sharpest pressure change is in the first few feet, which is where most ear injuries actually happen.
- Equalize before you feel anything, starting at the surface, then roughly every few feet down.
- Valsalva is the most taught and the easiest to overdo; gentle is the operative word for every technique.
- Descending feet first is easier on the ears than head down.
- Pain means stop, ascend slightly, equalize, then continue. It never means push harder.
- If an ear will not clear, the dive ends. That is a normal outcome rather than a failure.
- Diving congested risks a reverse block on ascent when decongestants wear off at depth.
- Medication that masks congestion rather than clearing it sets up a reverse block on ascent.
- If you can equalize on land but not underwater, descend feet first along a line and go slower.
Equalization techniques compared
| Technique | How | Strength | Limitation |
|---|---|---|---|
| Valsalva | Pinch nose, blow gently | Easiest to learn | Easy to overdo and injure yourself |
| Toynbee | Pinch nose, swallow | Gentle | Less forceful, sometimes less effective |
| Frenzel | Pinch nose, push with tongue | Precise, hands-free potential | Takes practice to learn |
| Jaw movement | Wiggle jaw, swallow often | Preventive rather than corrective | Not enough alone on a fast descent |
Want to book a class?
Call (516) 872-4571. We teach at 490 Sunrise Highway, Rockville Centre, NY 11570.
Frequently asked questions
How often should I be equalizing your ears when diving?
Start at the surface and equalize every few feet during descent, before you feel pressure. Waiting until it hurts means you have already left it too late.
Why does only one ear block?
Eustachian tubes are not identical and one can be narrower or more inflamed. Tilting the blocked ear upward while ascending slightly often helps it clear.
Can I dive with a cold?
It is strongly discouraged. Congestion makes equalizing unreliable, and decongestants wearing off at depth can trap air on ascent, which is a reverse block and harder to manage.
What is a reverse block?
Air trapped in the middle ear that cannot escape as you ascend. It needs a slow ascent and patience rather than speed. It is one reason diving congested is a bad idea.
Is a small amount of pain acceptable?
No. Pain is the signal to stop, ascend slightly and try again gently. Divers who treat discomfort as something to push through are the ones who get barotrauma.
Can I learn to equalize hands-free?
Some divers develop this using the Frenzel technique or voluntary tubal opening. It takes deliberate practice and is worth learning if you dive often, but it is not required.
Can I practice equalizing outside the water?
Yes, and it helps. Practicing Frenzel or gentle Valsalva on dry land builds the muscle memory so that on descent you are repeating something familiar rather than learning under pressure.
Do ear drops or sprays help?
Some divers use them, but anything that masks congestion rather than resolving it creates the risk of a reverse block later. If you need medication to equalize, the honest answer is usually not to dive that day.
Why can I equalize on land but not underwater?
Descending head down, cold water and the pace of pressure change all make it harder. Try descending feet first along a line, slowly, equalizing continuously rather than in response to discomfort.
