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Blog about diving in Burma and Thailand

How to avoid ear injury while scuba diving

29/12/2012

2 Comments

 
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One of the most common injuries while diving is a painful Middle Ear barotrauma, I’m sure you all felt a squeeze in your ears, even when only snorkeling and trying to go a few centimeters below the surface without equalizing, while diving, your ear are subject to the pressure around you and this squeeze can become very painful and cause serious permanent damage to your ear.

As you might know, pressure increase when going deeper below the surface. Your middle ear is a dead air space, connected to the back of your throat by the normally closed Eustachian canals, if you fail to fill up this space with air when the pressure around you increases (this is called equalizing) this is what’s happening:

How do you get an Ear Barothrauma?

-          Only 30 CM below the surface, your drum flex inward and you should feel pressure in your ear (you feel about the same when landing in a plane)

-          About 1 Metre below the surface, your eardrum swell up and mucus starts to enter your Eustachian canals making equalization difficult. Your ear nerves are stretched and you start to feel pain.

-          At 2 meters deep, your ears tissues begin to tear causing inflammation which might last for up to a week. Equalization is pretty much impossible as pressure forces soft tissues together shutting the canals ends.

-          At 3 meters deep, blood and mucous is sucked from surrounding tissues to fill your middle Ear, this is called Middle Ear Barothrauma. Pain decreases and you feel like water came filled up your ear. Don’t try to get the water out, no way, it will be reabsorbed by tissues within a week.  This is if you are lucky…

-          If you aren’t… At 4 meters, your eardrums may break. And water from the outside fill up your middle ear. This might cause vertigo, especially if the water around you is cold as the brain doesn’t know how to interpret this unbalance between your two ears. If you blow too hard to equalize, you also may rupture the round window membrane between your middle and inner ear, this is called inner ear barotrauma and may cause temporary or permanent hearing loss…

Ok, as you see things go very quickly and you realize that equalizing in necessary. Open up your Eustachain tubes and let the air flow in from your throat.

How to avoid ear problems while diving

Rule N.1 to avoid ear problem while diving: Mind your depth!

Be careful, you just emptied your BCD and you are subject to negative buoyancy! You don’t need to make any effort to fall like rocks without even noticing that you are going down. If you are going down with a line or against a wall, its pretty easy to see if you are going down, if you are going in open water, look at you gage.
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Rule N.2: to avoid ear problem while diving: Equalize!

The most common way of equalizing, tauch during PADI open water is Valsava Maneuver: pinch your nose and blow gently, increased pressure in your throat will automatically open your canals. This might be more difficult if it is not done early enough as increased pressure around you will lock the passage.

To avoid problem using this technic, don’t blow to hard, don’t maintain the pressure for more than 5 seconds and if you still can’t equalize, go up a bit until canals unlock.

Other methods to practice and combine:

-          Swallow while pinching your nose. This will activate the muscles below the tubes and pull them open while air compressed by your tongue goes in.

-          Bring  your jaw forward and down : like a yawn (be careful to keep a good seal around your reg if you don’t want salt water in your mouth) moving your jaw from side tto side might help

You can use each technic alone, alternate or together. With practice, some divers manage to keep their canals opened while descending, which lowers greatly the stress on its ear while diving.

If you keep your nostrils pinched, you will also feel a mask squeeze, letting some air through your nose fill your mask will be enough to avoid it.

Rule N.3 to avoid ear problem while diving: Take your time!

You should equalize as often as needed (more often than you feel the need for).

When going down, don’t wait to feel pressure in your ears to equalize as pressure only make it more difficult. If it is blocked, don’t force it, it’s the best way to break something. Keep steady (don’t let yourself sink any deeper!), go slightly up to unlock your canals and try again. If you can’t equalize, you can’t go down! Take your time… Listen to the “pop” or “click” when your tubes are opened.

When you reach the bottom depth, equalize once more as you may not feel a small pressure unbalance but it might still hurt your ear with time.

Tips: It is easier for some divers to descend feet first with your head above. Looking up also helps as it tend to open the Eustachian canals. If one technic doesn’t work, try to use another or combine two (swallow while blowing your nose or yawn while blowing your nose). Be careful of mucous, which can block your tubes:  don’t dive with a congestion (cold), keep your mask clear of water, avoid tobacco, alcohol and dairy if you are prone to ear problem while diving. Equalizing at the surface before descending might help. Chewing a gum before your dive might also help.

Rule N.4 to avoid ear problem when diving: Be careful of reverse block

When you ascend, the air in your middle Ear expends and must exit the same way (through your Eustachian canals. This usually goes without you even noticing and doesn’t require any action from you.

If you feel pressure in your ear or sinuses while ascending from your dive, you are experiencing a reverse block. A reverse block is caused by mucus preventing air bubbles in your middle ear, tissues or sinuses from escaping our body.

DOs and DON’Ts in case of reverse block

Be careful, while you feel about the same pain as with a normal block (going down), this problem is about the opposite so DON’T: go up to release pressure: go down! Don’t blow your nose as it will only increase the air pressure in your middle ear and increase the pain/ damage.

DO: Yawning or swallowing technics can help but if it doesn’t, stay still and take your time. Slow down your ascent. As long as you have air in your tank, no need to force the way. The last 10 meters will be the hardest so go slow. You can even try to go down a bit to lower the pressure (and pain) and let the air goes out slowly.

Again the most important is to take your time, some reverse block take 10-15 minutes to clear, but at low depth, you should have enough air to stay that long so relax and try to enjoy your extended dive…

How to avoid reverse block: don’t dive with a cold or sinuses problems and if you use a decongestant, make sure the effect will not wear off during your dive.

Your ears are precious and aren’t designed for the rapid pressure change incurred with diving, take good care of them to avoid traumas!
Happy Diving!
The Smiling Seahorse: Myanmar diving specialist!

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Camille Fogarolo 

Camille has been traveling the world since her mid twenties and dived many seas before finally settling down in Thailand in 2012. With her husband Franck, they opened The Smiling Seahorse liveaboard to offer cruises in the most unexplored area of South East Asia and became quite the experts when it comes to diving in Myanmar! Proud mother of two she still travels as much as she can and usually joins a dive trip to Mergui Archipelago every month.

2 Comments
Donna Nanan
17/3/2013 07:08:26 pm

Great article on how to prevent barotrauma. I would also add that the Frenzel maneuver is a safer and more effective way to equaluze and clear your eustacian tube while diving than the Valsalva maneuver.

Reply
Camille link
18/3/2013 01:48:19 am

Thanks Donna for your comment. Its true that the Frenzel Manoeuver (using your tongue pushing up at the back of the roof your mouth - like in swallowing) is safer than the Valsava Maneuver (blowing through your pinched nose). However I've heard many divers complaining that they cannot decompress using the Frenzel Maneuver. Would you have some good tips for them on how to perform this "safer Maneuver"? Thanks for your inpout :)

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  • When & Where
    • Schedule and Prices
    • Destinations >
      • North Andaman Thailand >
        • Similan Islands
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          • Richelieu Rock
        • The essential Underwater photo Guide to diving Thailand
      • South Andaman Thailand >
        • Phuket & Koh Phi Phi National Parks
        • Koh Lanta National Park
        • Koh Lipe and Tarutao National Park
      • Mergui Archipelago >
        • Liveaboard diving holiday in Myanmar
        • Burma's best dive sites
        • The Ultimate Underwater photo Guide to diving Burma
  • ABOUT
    • Our Boat >
      • DELICIOUS FOOD
    • Diving in Thailand in 2024-2025
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    • Blackwater diving in Thailand and Myannmar
    • Marine life in Thailand's Andaman Sea
    • Marine life in Mergui Archipelago
    • Dive Courses >
      • Learn to Dive
      • Continue diving education
      • Rescue diver
      • Professional Dive Courses
      • Hone your dive skills with a specialty course
      • Photo coaching in Thailand on the Smiling Seahorse
    • Guest Book
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  • Plan your trip
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    • Special Expeditions >
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