What is indicated by a sharp pain during descent?

A sharp pain during descent is most commonly an indication that you need to equalize. As you descend underwater, the pressure increases, and if the air spaces in your body, such as your ears and sinuses, are not equalized properly, it can lead to discomfort and pain. This sensation serves as a signal to the diver to perform equalization techniques—such as swallowing, yawning, or using the Valsalva maneuver—to balance the pressure in these air spaces with the surrounding water pressure.

While potential barotrauma could also be a concern if equalization is not performed and pressure becomes too great, the immediate response to sharp pain is typically to equalize rather than jumping to conclusions about injury or damage. Correctly identifying the need to equalize can prevent more serious complications and allow for continued safe and enjoyable diving experiences.