Jellyfish attack: Tips for Safe Diving in Thailand

blue jellyfish in water in close up photography

If you are thinking of exploring the underwater world, diving in Thailand is a great place to start. With over 900 islands and a variety of natural dive sites, this country offers a multitude of opportunities to explore its aquatic wonders. In addition to the beauty of its underwater world, Thailand is also one of the safest countries in Asia for divers. However, jellyfish is a possible danger. Here is an overview of how to do first aid if you or your dive buddy is stung by a jellyfish.

Know the Jellyfish Stings

Thailand is home to numerous Jellyfish species. These stinging marine organisms’ range in size and visibility from minute to large. The most dangerous species are the Box Jellyfish, Bluebottle Jellyfish, Sea Wasp (Portuguese Man-of-War), Irukandji Jellyfish, and Frill-Edged Jellyfish. The stings of the box jellyfish are among the most painful in the world, with tentacles that can reach 2 meters in length.

Be Alert

Scuba diving and snorkelling are the best means of experiencing underwater life. If you decide to take the leap, there are a few things to keep in mind. Staying alert while you are in the water is a good way to avoid getting stung by jellyfish. It is more likely that you will see jellyfish in the late afternoon when the water temperature is higher. Snorkeling can be dangerous if you do not pay attention to your surroundings. Avoid swimming near rocks or coral, which are ideal hiding places for them. Immediately seek medical attention if you are stung.

What to do if you get stung?

The next step is to learn about the symptoms and treatment of a jellyfish attack.

  1. Getting out of the water quickly is the first rule of dealing with a jellyfish attack.
  2. If the patient exhibits severe symptoms, such as loss of consciousness or cessation of breathing, seek medical attention immediately.
  3. Applying vinegar to the wound as soon as possible. Do not use your bare hands to rub the wound. Remove the tentacles with forceps if they are still attached.
  4. If vinegar is not available, rinse with sea water. Do not wash with any other liquid, such as fresh water, urine, or any other oil.
  5. If the symptoms are severe, see a doctor for further examination.
  6. Although the patient is experiencing only mild symptoms, it is important to monitor them for at least an hour because some jellyfish venom is mild at first, but can become violent later.


Although Thailand is an incredibly safe and beautiful place to visit, there are a few precautions you should take to avoid any potential dangers. When diving, be sure not to touch the coral or disturb the ecosystem, and always stay hydrated. And be sure to keep an eye out for dangerous sea creatures like jellyfish. Having a solid insurance policy for expat health in Thailand is essential in the event of an emergency. Be sure to purchase travel health insurance that covers any potential accidents you may encounter when exploring the beautiful beaches of Thailand.