Dive Medical Fitness Checklist – Medical Fitness for Scuba Diving
If you have started a PADI scuba diving course, you have probably already seen the WRSTC Dive Medical Fitness Checklist or Medical Statement form. For many new divers, it is the very first piece of paperwork they complete before entering the water.
While some people see it as “just another form,” the Dive Medical Fitness Checklist plays a very important role in scuba diving safety.
Its purpose is simple:
Help identify medical conditions that could increase the risks associated with scuba diving.
The checklist is not designed to judge your diving ability or fitness level as a swimmer. Instead, it helps determine whether certain medical conditions may require additional medical advice before diving.
Why Medical Fitness Matters in Scuba Diving
Scuba diving exposes the body to increased pressure, compressed breathing gases, and underwater environments that behave very differently from life on the surface.
Most dives are completed safely without incident. However, some pre-existing medical conditions can increase the likelihood of serious complications underwater.
Examples include:
- Asthma and respiratory conditions
- Heart and cardiovascular disease
- Ear and sinus problems
- Lung conditions
- Neurological disorders
- Diabetes
- Anxiety and panic disorders
- Previous decompression illness
A medical condition that may seem minor on land can become significantly more dangerous underwater.
For example, a mild breathing issue on the surface may simply feel uncomfortable. Underwater, however, that same problem could quickly become life-threatening.
That is why scuba diving medical standards are taken seriously across the diving industry.
What Is the Dive Medical Fitness Checklist?
The Dive Medical Fitness Checklist is part of the international scuba diving training standards (WRSTC standards) used by major training organisations such as PADI, SSI, SDI, CMAS, etc.
The form helps identify whether a diver should seek further evaluation from a doctor before participating in scuba diving activities.
The checklist was developed through collaboration between organisations including:
- World Recreational Scuba Training Council (WRSTC)
- Recreational Scuba Training Council (RSTC)
- Divers Alert Network (DAN)
- Undersea and Hyperbaric Medical Society (UHMS)
- South Pacific Underwater Medicine Society (SPUMS)
These organisations help create minimum training and safety standards for recreational scuba diving around the world. By following these internationally recognised standards, scuba diving courses from organisations such as PADI align with International Organization for Standardization (ISO) recreational diver training levels.
ISO Recreational Diver Training Levels
ISO 24801-1 – Supervised Diver
Equivalent to programs such as the PADI Scuba Diver certification. Divers are trained to dive under the direct supervision of a qualified dive professional or dive leader.
ISO 24801-2 – Autonomous Diver
Equivalent to the PADI Open Water Diver certification. Divers are trained to dive independently with a certified buddy without direct professional supervision, within the limits of their training and experience.
ISO 24801-3 – Dive Leader
Equivalent to professional-level certifications such as PADI Divemaster. Divers are trained to organise, supervise, and lead dives for certified divers while assisting with overall dive safety and operations.
Updated Diving Medical Forms
In recent years, the Dive Medical Fitness Checklist became more streamlined and easier for divers to complete.
Following the COVID-19 pandemic, updated medical recommendations provided clearer guidance and allowed divers more flexibility to self-assess certain medical conditions before requiring a physician’s approval.
At the same time, ongoing medical research has improved our understanding of how different illnesses interact with scuba diving.
As a result, many people who may once have been automatically excluded from diving can now safely participate after proper assessment and medical guidance.
Diving Has Risks – Training and Medical Screening Reduce Them
Like any adventure activity, scuba diving carries some inherent risks.
Fortunately, proper training, good decision-making, safe diving practices and medical screening dramatically reduce those risks.
Medical fitness screening is especially important because diving accidents underwater can become serious very quickly due to:
- Increased underwater pressure
- Limited direct access to the surface
- Remote dive locations
- Delayed emergency medical access
- Breathing compressed gas underwater
New divers often do not yet fully understand how pressure and breathing gases affect the body. That is why honest medical screening and proper training are both essential parts of becoming a safe diver.
What Happens if You Answer “Yes” on the Medical Form?
Answering “yes” to a question on the Dive Medical Fitness Checklist does not automatically prevent you from diving.
In many cases, it simply means you may need medical clearance from a qualified physician before starting your scuba diving course.
Often, a doctor may approve diving with:
- Additional precautions
- Medication management
- Condition monitoring
- Activity limitations
In some situations, however, certain conditions may make scuba diving unsafe.
The goal is not to exclude people from diving unnecessarily. The goal is to keep divers safe.
WRSTC Diving Medical Guidance to the Physician
If a diver answers “yes” to certain questions on the Dive Medical Fitness Checklist, they may be asked to seek medical clearance from a physician before participating in scuba diving activities. To assist doctors with this process, the World Recreational Scuba Training Council (WRSTC) provides an official document known as the Diving Medical Guidance to the Physician.
This guide helps medical professionals better understand the unique physiological demands scuba diving places on the body. It outlines how pressure, breathing compressed gas, immersion, and underwater environments may interact with various medical conditions. The document also provides recommendations on assessing conditions such as asthma, cardiovascular disease, diabetes, neurological disorders, ear and sinus problems, mental health conditions, and previous diving-related injuries.
Importantly, the WRSTC guidance is designed to support informed medical decision-making rather than automatically disqualify people from diving. In many cases, divers with controlled or well-managed medical conditions may still be medically fit to scuba dive safely after appropriate evaluation. The guidance helps physicians make evidence-based decisions while prioritising diver safety and reducing the risks associated with underwater activities.
Who Are Divers Alert Network (DAN)?
The Divers Alert Network (DAN) is one of the world’s leading organisations for scuba diving safety and diving medicine.
Founded in 1980, DAN originally operated as a medical emergency hotline for divers. Today, the organisation provides:
- Diving medical advice
- Emergency assistance
- Dive accident insurance
- Diving research
- Safety education
- Medical publications
- Hyperbaric and decompression illness support
DAN now operates globally through regional organisations including:
- DAN USA
- DAN Europe
- DAN Asia-Pacific
- DAN Japan
- DAN Southern Africa
Many scuba diving professionals and instructors consider DAN the most trusted source of scuba diving medical information in the world.
Using the DAN Website for Diving Medical Information
The DAN website contains a huge amount of useful information for divers researching medical conditions and scuba diving fitness.
Although it should never replace a proper medical examination, DAN provides excellent educational resources covering topics such as:
- Asthma and diving
- Diabetes and diving
- Anxiety and panic disorders
- Blood pressure and cardiovascular health
- Motion sickness
- Equalisation problems
- Fitness and exercise
- Patent Foramen Ovale (PFO)
- Pacemakers and diving
- Ear injuries and barotrauma
For many divers, DAN is the first place they look when researching whether a medical condition may affect their ability to dive safely.
DAN Medical Reference Guides and Safety Resources
DAN also publishes several excellent diving safety and medical reference guides.
Popular topics include:
- Decompression sickness (DCS)
- Ears and diving
- Hazardous marine life injuries
- The heart and scuba diving
- Flying after diving
- Diabetes and scuba diving
- Diving fatalities and risk factors
These resources help both divers and instructors better understand the medical side of scuba diving safety.
Being Honest on Your Dive Medical Form Matters
One of the most important things any diver can do is answer the Dive Medical Fitness Checklist honestly.
Sometimes divers worry that answering “yes” may stop them from diving. Because of this, a few people are tempted to hide medical conditions.
This is never a good idea.
Your instructor, dive centre, and training agency want you to dive safely, not prevent you from diving unnecessarily.
Providing accurate medical information helps ensure:
- Safer diving experiences
- Better emergency preparedness
- Appropriate training decisions
- Proper insurance coverage
- Reduced risk underwater
Ultimately, the medical form exists to protect the diver.
Final Thoughts on the Dive Medical Fitness Checklist
Having a medical condition does not automatically prevent someone from becoming a scuba diver.
Many people with medical conditions safely enjoy scuba diving every day after receiving appropriate medical advice and clearance.
However, scuba diving places unique demands on the body, and some conditions may require additional precautions or specialist assessment.
The Dive Medical Fitness Checklist helps identify those situations before entering the water.
If you are ever unsure about your fitness to dive, the best option is always to speak with a qualified dive medical physician or refer to trusted resources such as DAN.
Because when it comes to scuba diving safety, being cautious and informed is always the right decision.
