For many years asthma automatically excluded people from scuba diving, but modern diving medicine takes a more nuanced view. Today, well-controlled asthma often does not rule out diving, provided you disclose it honestly and obtain clearance from a physician who understands the demands of diving. The key words are well-controlled and medically cleared. This guide explains why the concern exists and what a safe path looks like so you can enjoy the reefs of Isla Fuerte with confidence.
Why asthma matters underwater
The main concern is air trapping. During ascent, air in the lungs expands, and if narrowed airways trap that air, the pressure can injure lung tissue. Cold water, exertion and breathing dry compressed air are all potential asthma triggers.
This is why doctors focus on how stable and well-managed your asthma is, rather than simply whether you have it. Triggered, poorly controlled asthma and diving do not mix, but stable asthma is a different situation.
What "well-controlled" means
Generally, physicians look for asthma that has been stable for a good while, with no recent attacks triggered by exercise, cold or emotion, normal lung-function tests and no need for rescue inhaler use around activity.
Someone whose asthma flares with exertion or who has needed emergency treatment recently is in a very different category. Only a diving physician can weigh your specific history.
What to do before you dive
Complete the medical questionnaire truthfully and get a diving-medical clearance from a doctor familiar with diving. Bring your inhaler on the trip and let your guide know your history and your triggers.
- Declare your asthma on the medical form.
- Get written clearance from a diving physician.
- Keep your condition well-managed before the trip.
- Tell your instructor and buddy.
Why honesty protects you
Hiding a condition to avoid paperwork is the most dangerous choice you can make. When we know your history, our PADI instructors plan the dive around it, choosing calm, shallow beginner reefs and watching conditions closely.
We are your partners in a safe dive, not a hurdle. The questionnaire exists to keep you safe, not to exclude you.
Dive well within your limits
With clearance in hand, choose easy conditions and a relaxed pace. Our warm 27 to 29 degree water and sheltered beginner sites like El Museo are ideal for a calm, low-exertion dive.
Explore our courses and dives and reach out with any medical questions before booking so we can plan the right experience for you.
Important
This is general educational information, not medical advice. Always complete the medical questionnaire honestly, dive within your training and, if in doubt, consult a diving physician or contact DAN (Divers Alert Network). In an emergency in Colombia, the nearest hyperbaric chamber is in Coveñas.
