Diving After a Nissen Fundoplication

I am a 57-year-old male who is planning to undergo a laparoscopic Nissen fundoplication for refractory gastroesophageal reflux disease (GERD) and a hiatal hernia. Is the procedure considered an absolute […]

stomach illustration

MCAS and DCS Risk

I have been diagnosed with mast cell activation syndrome (MCAS). Will that increase my risk of decompression sickness (DCS) if I dive? With MCAS, mast cells release excessive amounts of […]

mast cell activation syndrome (MCAS)

Diving with Type 1 Diabetes

Q: I was recently diagnosed with type 1 diabetes and will now require insulin. Will I be able to dive again?

Woman giving herself an insulin shot

COPD: Incompatible With Diving

Reduced exercise tolerance is common for those with chronic obstructive pulmonary disease and poses risks for diving. There can be strenuous activity involved with managing currents, swimming on the surface in choppy seas or pulling yourself and your heavy gear up a ladder and onto an unsteady boat. With COPD, shortness of breath during exertion doesn’t mean you are out of shape; it means you cannot rid your body of carbon dioxide and replace it with the oxygen needed to meet the demand of your exertion.

COPD in the lungs

Wetsuits and Urination

Urinating in a wetsuit is common for many recreational divers and is generally not harmful when exposure is limited. Immersion in water, especially cold water, triggers immersion diuresis, which shifts blood into the central circulation and increases urine production. Most divers feel that urge within minutes of entering the water. 

Man urinated in wetsuit

Laryngospasm and Anxiety

Q: During dive training in the pool, I couldn’t breathe after clearing my mask with my regulator in my mouth. After surfacing, I took six to eight wheezing breaths and then could breathe normally again. It’s possible I inhaled water during the exercise, but my instructor and I could not recall when or how that would have […]

doctor consulting with patient on his concussion