Almost every new diver feels it in the first few meters: a growing pressure in the ears that gets uncomfortable if you ignore it. It is normal, and it is easy to manage once you know how to equalize. This guide explains why your ears need equalizing, when to do it, the main techniques, what to do if your ears will not clear, and which mistakes to avoid, so your first dives are comfortable and safe.
Why Do Your Ears Need to Be Equalized When Diving?
Your middle ear is a small air-filled space behind the eardrum. As you descend, the water pressure around you rises and pushes the eardrum inward, while the air behind it stays at the lower pressure from the surface. Unless you add air to the middle ear, the difference grows and begins to feel like pressure and then pain.
A narrow channel called the Eustachian tube connects the middle ear to the back of the throat. On land it opens when you swallow or yawn, but under pressure it tends to stay closed, so divers use special techniques to open it and let air flow in. That is what equalizing means: matching the pressure in your middle ear to the pressure of the water outside.
The pressure changes fastest near the surface. Pressure doubles in the first 10 m (33 ft), which is why ears are most likely to bother you at the start of the descent.
When Should You Equalize Your Ears During a Dive?
The rule that every instructor repeats is "equalize early and often". Start before you go under, keep going all the way down, and never wait for discomfort to tell you it is time.
Equalizing During Descent
Equalize gently on the surface before you start your descent, and again as soon as your head goes under. Then continue every meter or so as you go down. Descending feet first along a line, with your body upright, helps because it lets you control your speed and stop whenever you need to. If you feel pressure building, stop sinking, equalize, and only continue when both ears feel clear.
Why You Should Equalize Before You Feel Pain
If the pressure difference grows too large, the soft tissue around the Eustachian tubes can be pressed together, which makes them harder to open. At that point blowing harder does not work and can injure the ear. Equalizing before you feel pressure keeps the tubes open and the middle ear close to the pressure of the water, so the dive stays comfortable.
How Often Should You Equalize?
There is no single number that suits every diver, but a good starting point is every meter (about 3 ft), or even every half meter, during the first 10 m (33 ft), where the pressure changes fastest. After that you can equalize less often, but keep doing it regularly, especially if you swim up and down. Many people equalize by habit every few seconds during a normal descent.
How to Equalize Your Ears While Scuba Diving
All equalization techniques do the same job: they open the Eustachian tubes so air can reach the middle ear. Learn the simplest one first, then add others if you need them. Your instructor can show you each technique in shallow water.
The Valsalva Maneuver
The Valsalva is the standard technique taught to new divers. Pinch your nostrils through the mask nose pocket and gently exhale through your nose. You should feel a small pop or fullness in your ears. The key word is "gently". A hard blow can damage the ear and does not work better than a soft one, and it is not the best choice if you have to repeat it often.
The Frenzel Maneuver
The Frenzel uses the muscles of the tongue and throat instead of the lungs. Pinch your nose, close the back of your throat as if you were about to say the letter "K", and push your tongue upward and back. This sends a small, controlled burst of air to the ears. It takes practice, but many instructors and divers prefer it because it is gentler and does not create the high pressures a hard Valsalva can.
The Toynbee Maneuver
With the Toynbee, you pinch your nose and swallow. It is simple and gentle, and it is particularly useful on the way up, if your ears feel blocked during ascent. You can also combine it with a gentle Valsalva, which is sometimes called the Lowry technique.
Head and Body Position for Easier Equalization
Position makes a real difference. Many divers find equalizing easier when they descend feet first with the head upright or tilted slightly up, and harder when they dive head down. Moving the jaw forward, or turning your head slightly to one side, can also help one stubborn ear. Descending along a line helps you stay vertical and relaxed, because tense neck and jaw muscles make equalizing harder.
What Should You Do If You Can't Equalize Your Ears?
Stay calm and follow the same steps every time. A blocked ear is common, and it is a problem only if you ignore it or push through it.
Stop Your Descent
As soon as one ear will not clear, stop going deeper. Hold on to the descent line or the anchor line, or stay beside your instructor, and signal that you have a problem. Going deeper with a blocked ear makes it worse, because the pressure difference keeps growing.
Ascend Slightly and Try Again
Swim up a meter or two, until the pressure feels lighter, and try again with a gentle technique. Reducing the pressure often lets the tubes open. Tilt your head, move your jaw, swallow and try the Valsalva, Frenzel or Toynbee again, one at a time and gently. Once the ear has cleared, continue the descent more slowly and equalize more often.
Never Force Equalization
Do not blow hard to make an ear clear. Too much pressure can injure the eardrum, the round window or the inner ear, and the damage can be serious. If gentle attempts do not work after a minute or so, that is your answer: this ear is not ready to go deeper today.
When to End the Dive
If you cannot equalize after trying at a shallower depth, end the dive or stay at a depth where both ears are comfortable. Tell your instructor or buddy, and do not try to catch up by descending quickly. Missing one dive is much better than a painful ear that keeps you out of the water for weeks.
Common Ear Equalization Mistakes Divers Make
Most ear problems come from a handful of avoidable habits. Fixing them solves the majority of equalization difficulties.
Waiting Until Your Ears Hurt
This is the most common mistake. Once the ears hurt, the tubes may already be locked shut, and it becomes much harder to clear them. Equalize before the first feeling of pressure and keep doing it all the way down.
Equalizing Too Forcefully
A hard Valsalva feels like it should work better, but it can injure the ear. Use small, gentle puffs and stop if nothing happens. If an ear does not clear, change something else, such as depth or position, rather than blowing harder.
Descending Too Quickly
A fast descent changes the pressure faster than your ears can match it. Take it slowly, ideally along a line, and let the slowest ear set the pace. Descent speed is one of the easiest things to fix and one of the biggest causes of problems.
Diving With Congestion or a Cold
Swollen nasal tissue makes the Eustachian tubes harder to open, so a cold, hay fever or a blocked nose can turn an easy dive into a painful one. Do not dive when you are congested. Decongestant sprays and tablets are risky because they can wear off during the dive, so speak to a doctor first. If you are unsure whether your health allows diving, read our guide to the PADI medical questionnaire.
Why Do Some Divers Have Trouble Equalizing?
Equalizing ability varies from person to person, and from day to day in the same person. Three causes are most common: swelling in the nose and sinuses, the shape of your Eustachian tubes, and technique.
Sinus Congestion and Colds
A cold, allergy or blocked nose swells the lining of the nose and throat, which narrows the openings of the Eustachian tubes. This is the most common reason a normally comfortable diver cannot clear on a given day. If you have symptoms, postponing the dive is usually the safest choice.
Anatomy and Eustachian Tube Problems
Some people have narrower or less flexible Eustachian tubes, and a few have physical differences in the nose or throat that make equalizing harder. If you always struggle even when you feel healthy, an ear, nose and throat (ENT) doctor, ideally one with diving experience, can check whether there is a medical reason and what is safe for you.
Poor Equalization Technique
Many problems are not medical at all. New divers often blow too hard, wait too long, descend too fast or use a technique that does not suit them. With some coaching and practice, most people can learn to equalize comfortably, and a different technique, such as the Frenzel, often solves the problem.
How to Practice Ear Equalization Before Scuba Diving
Equalizing is a skill, and like any skill it gets easier with practice. You can start well before you reach the water.
Practicing on the Surface
On land, try your technique gently a few times and notice what a successful clear feels like. Practicing the Valsalva, the Toynbee and, when you are ready, the Frenzel helps you recognize the pop or click of the Eustachian tubes opening. Some divers also equalize gently every few minutes in the hours before a dive. Keep it light, because forcing it at home does not help and can irritate the ear. Staying hydrated is also a simple habit that supports comfortable equalizing.
Learning the Technique With a Diving Instructor
An instructor can watch your technique, correct it and let you practice in shallow water where it is easy to stop and try again. This is one of the best reasons to learn to dive with a professional. If you are new to diving, our guide to learning to dive in Hurghada explains how a PADI Open Water course is structured.
Is Ear Pain Normal When Scuba Diving?
Mild pressure is normal, and it is your signal to equalize. Pain is not normal, and it is your signal to stop. Diving through pain risks ear barotrauma, which means injury caused by a pressure difference.
The Difference Between Pressure and Pain
Pressure feels like fullness or a squeeze that disappears when you equalize. Pain is sharper, stays after you try to clear, or gets worse as you go deeper. If the feeling goes away with a gentle equalization, you are doing it right. If it does not, stop descending and ascend a little.
Signs of Possible Ear Barotrauma
Watch for these signs, during the dive or afterwards:
Ear pain that continues after the dive
A feeling of fullness or a blocked ear
Muffled or reduced hearing
Ringing in the ear
Dizziness or vertigo
Fluid or blood coming from the ear
When Should You Stop Diving and Seek Medical Advice?
Stop diving, and do not continue the next day, if you have pain that does not ease, reduced hearing, ringing or dizziness. Sudden vertigo or hearing loss can mean inner ear injury and needs urgent medical care, so do not wait to see if it passes. See a doctor, ideally one with diving medicine experience, before you dive again. Do not put anything into the ear or treat it yourself before a doctor has examined it.
This article is general education and does not replace advice from a doctor.
Ear Equalization Tips for Beginner Divers
Keep these habits in mind on every dive:
Equalize gently on the surface before you descend, and again as soon as you go under.
Descend feet first, slowly, along a line if one is available.
Equalize every meter or so in the first 10 m, before you feel pressure.
Be gentle. Small, soft puffs work better than a hard blow.
If an ear will not clear, stop, go up a little and try again.
Never push through pain, and end the dive if you still cannot equalize.
Do not dive with a cold or a blocked nose, and ask a doctor if you are unsure.
Stay hydrated, and tell your instructor or buddy early if something feels wrong.
Ask your instructor to teach you more than one technique.
With patience and good habits, most new divers learn to equalize within their first few dives. If you would like to learn with a professional, explore diving with Dive More in Hurghada, or message the team on WhatsApp with your questions.
FAQ
How do you equalize your ears when scuba diving?
Pinch your nose through the mask and gently exhale through your nose (the Valsalva), or pinch your nose and swallow (the Toynbee), or use your tongue and throat to push air to the ears (the Frenzel). Start before you descend and repeat every meter or so. Always be gentle, and stop if you feel pain.
When should you equalize your ears while diving?
Equalize on the surface before you descend, as soon as you go under, and then every meter or so during the first 10 m (33 ft), where the pressure changes fastest. Do it before you feel pressure, not after.
Why can't I equalize my ears underwater?
The most common causes are congestion or a cold, descending too fast, waiting too long to equalize, and technique that is too forceful or ineffective. Some people also have narrower Eustachian tubes. Stop descending, go up slightly and try again gently. If you still cannot clear, end the dive, and see an ear, nose and throat doctor if it keeps happening.
How often should I equalize while scuba diving?
Every meter or so (about every 3 ft) during the first 10 m, then regularly as you continue to descend or change depth. Many divers equalize every few seconds on the way down.
