What medical conditions can stop you from scuba diving?
Underlying respiratory conditions, such as asthma, chronic obstructive pulmonary disease, or a history of spontaneous pneumothorax, can challenge the breathing capacity required of divers.
Is asthma a contraindication for diving?
If a patient has mild-to-moderate asthma with normal screening spirometry then he/she can be considered a candidate for diving. However, if a patient suffers from an asthma attack they should not dive until their airway function on spirometry returns to normal.
When should you not scuba dive?
For example, it’s never a good idea to dive with a cold or cold-like symptoms. The risks of ear barotrauma as a result of inefficient equalization are simply too great. If you damage any part of your ear, you may be unable to dive for weeks or even months. It’s not enough to take decongestant medication, either.