What Is It Called When You Rise Too Fast From Deep Water?

Deep-water divers learn how to ascend in stages to equalize pressure.

An exhilarating sport, deep-water diving is made even more exciting by the frisson of danger. Certified divers take extra courses to receive deep-water dive certification — and that training includes a thorough grounding in the risks and safety procedures for descending and ascending to avoid uncomfortable or dangerous reactions to the changes in pressure. When you do come up too fast from a deep dive, you can experience decompression sickness — DCS — commonly called “the bends.” DCS is extremely painful and can be fatal.

Diving Deep

A deep-water dive involves depths of 60 to 130 feet, according to PADI, the Professional Association of Diving Instructors, the agency that dominates worldwide scuba certification. For a recreational diver, this usually means a wreck dive or a bounce dive — a dive to the bottom or deepest depth with the fastest possible return to the surface. Bounce dives are supposed to minimize the pressure problems you can encounter in deep-water dives but they still carry a degree of risk.

Nitrogen Bubbles and DCS

Deep diving places more stress on your body than shallow diving due to pressure differences and colder water temperatures. Pressure differences pose the greatest health risks, and it helps to understand why. The compressed air in your scuba tank is denser — you take in more nitrogen and oxygen molecules with each breath. Nitrogen, an inert gas, dissolves in your blood and tissues, and is eventually expelled from your body. But when you rise quickly to the surface from the depths, the resultant pressure drop causes the nitrogen to form gas bubbles in your tissues and blood, which blocks your circulation. Decompression sickness resulting from a too-rapid ascent can cause crippling joint pain, back pain, severe and sudden headache, tingling and numbness, dizziness, chest pain, disorientation, shock, paralysis, stroke and death. When immediate treatment is not available DCS can be fatal.

Emergency Treatment

Emergency treatment for a diver stricken with DCS requires dissolving the nitrogen bubbles by increasing pressure, or recompression. This takes place in a hyperbaric chamber, which controls the pressure and slowly lowers it to surface pressure as the dissolved nitrogen is normally exhaled. En route to a hyperbaric chamber, the stricken diver should breathe 100 percent oxygen from a mask. In mild cases, this may be enough to alleviate symptoms, although a medical evaluation is advisable. Some dive boats, such as research vessels that routinely serve as staging vessels for deep dives, have their own hyperbaric chambers, but recreational divers will most likely require emergency transport to a facility with a chamber. Delays in treating the bends can be costly, so it is important to know what safety provisions are available when you plan a deep dive.


Deep dives deliver both aerobic and resistance exercise, and scuba diving is a relaxing stress-reliever. To enjoy the health benefits without taking undue risks, create your own prevention protocol for decompression sickness. Review your certification materials before each dive and skip the deep dives if you are severely overweight, pregnant, or have cardiovascular disease or lung problems. Don’t deep dive with a joint injury — nitrogen bubbles are painful enough to joints to cripple you. Ease off on alcohol consumption before diving and don’t cram a lot of repeat deep dives into one day. It’s better to wait at least 24 hours after a deep dive before flying, due to changes in cabin pressure. And, don’t assume basic wreck diving techniques are sufficient to prepare you for a deep dive. Wreck diving precautions in addition to thorough deep diving training will get you down and back safely.

  • PADI: Deep Diver
  • PBS: Survival Beneath the Surface

Benna Crawford has been a journalist and New York-based writer since 1997. Her work has appeared in USA Today, the San Francisco Chronicle, The New York Times, and in professional journals and trade publications. Crawford has a degree in theater, is a certified Prana Yoga instructor, and writes about fitness, performing and decorative arts, culture, sports, business and education .

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The Process Of Fizzing Up When Scuba Diving

When scuba diving, “fizzing up” refers to the process of exhaling small bubbles of air from your regulator. This helps to release water from the regulator and prevent it from freezing. By fizzing up, you are also able to equalize the pressure in your regulator, which helps to keep it functioning properly.

What Is It Called When You Come Up From Deep Water Too Fast?

Compression sickness is characterized by feeling stiff and numb in the compression of the muscles. Diver Decompression Sickness is caused when a diver rapidly ascends too high in the air. Divers use breathing equipment that is completely independent of the surface air supply during scuba diving, which is an underwater diving mode. The term’scuba’ came to be after Christian J.Lambertsen invented an underwater breathing apparatus in 1952. https://en.wikipedia.org/w/index.html/Scuba_divingScuba breathing means breathing compressed air that is exhaled Nitrogen gas is released by the body as it experiences higher pressure under water.

Divers must have extensive training in addition to deep-water diving certification. A difference in pressure during deep diving causes your body to be more stressed than during shallow diving. When you go over the top of a deep dive too quickly, you may suffer from decompression sickness. DCS is extremely painful and can result in death. Emergency transportation to a facility with a hyperbaric chamber is most likely required in the case of recreational divers. If you suffer a joint injury while diving, nitrogen bubbles can cause severe pain and damage your joints. Because of cabin pressure fluctuations, it is better to wait at least 24 hours after diving before flying.

What Happens If You Decompress Too Quickly?

Because nitrogen can rise slowly and safely to the surface (decompresses), it can slowly and safely leave the body through the lungs. When nitrogen levels rise too quickly in a diver, they form bubbles in their bodies. As a result, there is tissue and nerve damage.

Decompression illnesses have been linked to scuba diving, jet skiing, astronauts, and compressed-air workers. The main risk factor for DCI is a reduction in ambient pressure, but other risk factors will also increase the likelihood of the disease. Joint pain (the bends) is the most common reason for bubbles forming in or near joints. In the case of an ascendent, air trapped in the lungs may rupture the lung tissue. Pulmonary barotrauma, as the name implies, occurs when gas bubbles are released into the arterial blood stream. Bubble formation can interrupt blood flow to the brain because it receives the greatest amount of blood flow. Divers who use dive tables or computers should keep their dive plans in mind while diving conservatively.

Too soon after diving can also result in elevations that are too high, increasing the risk of decompression sickness. Divers should not get too worked up over the possibility of exceeding no-decompression limits. Breathing oxygen through a cylinder may resolve symptoms of AGE and severe DCS. It is common for symptoms to appear in and around an affected joint and to go away in a few hours. If the DCI deteriorated to a severe level, there was a possibility of neurological dysfunction. If you have ongoing issues, physical therapy and follow-up treatments may be beneficial. You should base your response on one of three categories: immediate, urgent, and timely.

The only symptoms that appear are severe pain that is unchanging or has not progressed much over a few hours. Continue to administer 100 percent oxygen until the diver arrives at a medical facility, if cardiopulmonary assist (CPR) is successful. Most of the time, vague complaints of pain or an abnormal sensation are the only sign or symptoms. The dive history is available here. Obtain and document the following information if you suspect that you have debierece illness. It may be beneficial to the treating doctor to examine an injured diver‘s central nervous system in the aftermath of an accident. A thorough examination is essential, but it should not distract you from making an urgent medical facility decision.

Can You Get The Bends From Descending Too Quickly?

Deep-sea divers who attempt to dive too quickly to the surface are prone to this condition. This can also happen when a hiker makes their way down an extremely steep mountain, astronauts return to Earth, or tunnel workers are compressed into a compressed air environment. Gas bubbles can form in the blood and tissues if a person has decompression sickness (DCS).

What Happens If You Rise To The Surface Too Fast?

When a diver gets too close to the ocean’s surface, he or she can experience bends because nitrogen gas bubbles form in the blood and other tissues, causing him or her to experience rapid breathing. Diver’s disease is also known as Caisson sickness, decompression sickness (DCS), or other illnesses caused by diving.

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What Are The Effects Of Decompression?

Decompression sickness is characterized by neurologic symptoms such as numbness, paralysis, and death in the more severe cases. It is especially hazardous for the spinal cord. When you have spinal cord involvement, you may experience numbness, tingling, weakness, or a combination of the two.

What Does Thumbs Up Mean In Diving?

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A thumbs up in diving generally means that the diver is okay and wants to surface. It is usually used as a sign of distress, especially when the diver is unable to use other signals.

Signaling While Diving

Divers should put their hands together in front of their bodies if they want to demonstrate that they are peaceful and not dangerous to others. A dive guide will be able to tell if the diver has reached the end of the dive by using this signal as well. Diver should also signal the dive guide with a picture or a tool in addition to taking pictures.

What Happens if You Fart While Scuba Diving?

What Happens if You Fart While Scuba Diving?

Did you know that the average human farts 13–21 times a day? Passing wind is a natural body function that happens to us all, and it’s nothing to be embarrassed about. We all know what happens if you fart while swimming, but what happens if you fart while scuba diving?

The answer to that question depends on the type of exposure suit you’re wearing. The fart bubbles may get trapped inside or get released in the form of bubbles. Whether you’re wearing a wetsuit, a dry suit, or even a swimsuit, either way, the fart has to find its way up to the surface.

Keep reading to know more about farting while scuba diving and if it might affect your buoyancy in any way.

What Happens if You Fart While Scuba Diving?

Farting reflects the bacterial activity inside your gut, and it’s completely normal to fart many times a day. Although the amount and frequency of farting depend on your diet, everyone does it.

The process of releasing farts while scuba diving is no different from what happens on land. We expel the gas build-up in our intestines that results from digesting food and swallowing air through “the back door.” So how does that happen while Scuba diving?

If you’re wearing a normal swimsuit, which isn’t that common during scuba diving unless it’s a short dive, the fart bubbles escape through your swimwear and ascend to the surface.

But what about wetsuits and drysuits? Here’s what happens:


Wetsuits are garments that divers wear to provide them with thermal protection while underwater. They’re usually made from foamed neoprene, which is a porous material. The suit has openings that let water in and out of it.

Consequently, if you fart while wearing a wetsuit, the gas bubbles will probably escape through those pores or openings and up to the surface where they dissipate. As for the sound, you may ask, the gas bubbles might make a slight gurgling noise.


Drysuits act just like wetsuits do with the addition of water exclusion. They protect the whole body except for the hands, face, and sometimes feet. They allow better insulation as they mainly keep your body dry while scuba diving.

In addition, drysuits fit loosely around your body with the possibility of inflating and deflating when necessary. Divers control this process by using an inflator button and a vent valve.

So, if you fart while wearing a dry suit, the tiny fart bubbles get trapped inside. This means that the bubbles of fart will probably accumulate inside your suit and roam around until they’re able to escape with the vented air or until you take your suit off.

Well, there’s no way of finding out whether the fart has escaped or remained inside your drysuit until you unzip it. This is actually a funny way divers use to prank each other.

Does Depth Affect the Urge to Fart While Scuba Diving?

The deeper you descend, the stronger the pressure is. As a result of the increasing pressure, gas tends to decrease in volume. According to Boyle’s Law, at a depth of 33 feet underwater, the volume of any gas decreases to one-half of its original volume.

Consequently, the deeper you dive, the less in volume the gasses inside your body become. Not just that, this also applies to the gas inside your air tank. So, this means that your farts, “the gas inside your digestive system,” shrink.

So when this happens, the pressure of gas against your intestine walls decreases to the point that you won’t feel the urge to fart. This explains why you should equalize your mask and ears. Additionally, it also justifies the reason why you run out of air faster at deeper levels.

Is It Safe to Fart While Scuba Diving?

Yes, it’s completely as safe to fart while scuba diving as it is on the surface. It could be embarrassing but never unsafe. So, if you ever feel the need to fart when you’re underwater, just go for it. At least it won’t smell.

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If you prefer to hold it in as you descend into the water, the urge to fart will disappear because of the previously mentioned gas compression. However, the gasses inside your digestive tract expand back to their original volume while you ascend back to the surface.

Consequently, the urge to fart returns. So, if you’re feeling embarrassed to fart in front of your fellow divers, try to camouflage the bubbles with the bubbles coming out of your regulator.

Does Scuba Diving Cause Gas?

The action of scuba diving itself does not cause gas. What causes it is excessive air swallowing as well as your eating habits before and after diving.

As mentioned before, gas is caused by food digestion and swallowing air. Typically, we swallow air during eating, drinking, or swallowing our saliva. This air build-up in our digestive system will eventually find its way out through farting or burping.

Most of the air we swallow while scuba diving is caused by the basic equalization methods that involve swallowing, like Lowry Technique or the Toynbee Maneuver.

If you have a problem equalizing, or you’re doing it excessively, you could swallow excess air, which enters your guts, accumulates inside, and expands while ascending to the surface.

What to Do to Avoid Getting Gass?

There are a few things to do to avoid getting gas. One of which is regular exercise. Exercising helps prevent farting and deflates your bloat. In addition, physical activity, in general, helps expel gasses and move digestion along.

Additionally, chewing your food slowly prevents you from swallowing too much air and facilitates the breakdown process. That said, there are certain kinds of food and drinks that you better avoid having before or in between dives, including:

Can Other Divers Hear Your Fart While Scuba Diving?

Our ears don’t perceive vibrations under the water as efficiently as they do above water, which is why it’s not easy to understand a person who tries to talk while diving.

Although sound travels faster underwater, it’s hard to determine the direction where it comes from. Additionally, there’s a lot of noise down there. So, even if you heard what might sound like a fart, it might not be one.

Does Farting Affect Your Buoyancy?

Buoyancy is the person’s capability to float. In diving, buoyance also refers to the capability to remain afloat, suspended, or at the bottom. As a diver, you get to control your buoyancy through something called a buoyancy control device (BCD).

Buoyancy changes with depth, and we tend to lose buoyancy when the air inside our bodies compresses while descending. That’s why divers adjust their BCD to balance their buoyancy.

The goal is to remain as close to neutral buoyancy as possible. At this stage, even inhaling and exhaling cause you to go up and down a little. As strange as it might seem, farting is a bit similar to exhaling. Whether through your mouth or your behind, both ways you expel gas.

That’s why some people wonder if farting can, in fact, affect the person’s buoyancy. However, if you think about it, the amount of air coming out of your lungs is significantly larger than the amount of gas coming out through farting.

On average, the volume of an adult person’s single fart is about 100 ml. On the other hand, the amount of air inhaled or exhaled by a human being equals about 500 ml, which is five times larger than the fart’s volume.

Even Though farting, in theory, should affect your buoyancy, it’s hardly ever noticeable. So, it’s safe to answer this question with a “no.” No matter what kind of exposure suit you’re wearing or how big your fart might seem, farting doesn’t affect your buoyancy.

A Final Thought

Asking what happens if you fart while scuba diving isn’t a silly question. If anything, it’s kind of an important question to know the answer to. Basically, it depends on the type of exposure suit you’re wearing.

If you have a wetsuit on, fart bubbles escape instantly. However, if you’re wearing a drysuit, fart bubbles get trapped inside. Either way, try not to hold the fart in. Though the urge to fart disappears while descending, it returns while ascending, and it can be really uncomfortable.

Finally, if you steer away from food and drinks that cause excessive gas before diving, you shouldn’t have to worry about farting underwater.

Source https://livehealthy.chron.com/called-rise-fast-deep-water-3603.html

Source https://www.desertdivers.com/the-process-of-fizzing-up-when-scuba-diving/

Source https://diving-info.com/what-happens-if-you-fart-while-scuba-diving/

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