## What is a Pressure Squeeze in Scuba Diving?
A pressure squeeze is a condition that occurs when the pressure on the body exceeds the pressure inside a body cavity. This can cause the body cavity to collapse, which can lead to serious injuries.
Pressure squeezes can occur in any body cavity, but they are most common in the ears, sinuses, and lungs.
### Causes of Pressure Squeezes
Pressure squeezes are caused by a difference in pressure between the inside and outside of a body cavity. This can occur when the external pressure increases, such as when a diver descends in the water, or when the internal pressure decreases, such as when a diver exhales.
### Symptoms of Pressure Squeezes
The symptoms of a pressure squeeze can vary depending on the location of the squeeze.
**Ear squeezes** can cause pain, hearing loss, and dizziness.
**Sinus squeezes** can cause pain, congestion, and headache.
**Lung squeezes** can cause chest pain, shortness of breath, and coughing.
### Treatment of Pressure Squeezes
The treatment for a pressure squeeze depends on the location and severity of the squeeze.
**Ear squeezes** can usually be treated by clearing the ears. This can be done by swallowing, yawning, or blowing gently into the nose while pinching the nostrils closed.
**Sinus squeezes** can be treated by taking over-the-counter decongestants or by using a nasal spray.
**Lung squeezes** can be treated by ascending to a shallower depth. In some cases, oxygen therapy may be necessary.
### Prevention of Pressure Squeezes
The best way to prevent pressure squeezes is to equalize the pressure in the body cavities before they are exposed to a change in pressure. This can be done by:
* **Clearing the ears** before descending in the water.
* **Taking a nasal decongestant** before diving if you have sinus congestion.
* **Exhaling slowly and continuously** when ascending to a shallower depth.
### Conclusion
Pressure squeezes are a serious hazard that can occur during scuba diving. By understanding the causes, symptoms, and treatment of pressure squeezes, you can help to prevent them from happening.
## Additional Tips for Preventing Pressure Squeezes
* **Ascend slowly.** The faster you ascend, the greater the difference in pressure between the inside and outside of your body cavities, and the more likely you are to experience a pressure squeeze.
* **Make frequent stops.** When you ascend, stop every 10-15 feet to equalize the pressure in your body cavities.
* **Don’t hold your breath.** Holding your breath can increase the pressure in your lungs and make you more susceptible to a lung squeeze.
* **Use a snorkel.** A snorkel can help to equalize the pressure in your ears and sinuses.
* **Dive with a buddy.** A buddy can help you to monitor your ascent and make sure that you are equalizing the pressure in your body cavities.
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