Dangerous Creatures


Things To Watch Out For

Flora and fauna in Krabi are a mix of harmless and dangerous.


One type of jungle vine with orchid-looking flowers (dok mamui) will cause an itchy rash like poison ivy if oil from flowers contacts the skin. Don’t pick things you don’t know.


Like almost everywhere, there are things you shouldn’t eat. If you don’t know it, keep anything wild in the fields, forest, or jungle out of your mouth.


Except for mosquitoes, insects are not a big problem in Krabi. Following common sense practices and dressing appropriately can prevent most insect problems. (See Page on Mosquitoes)


Ants can be bothersome, but are usually harmless. Tiny and large red ants’ bites can sting, or ache and leave red welts. Try to stay away from them. Leaving unsealed food or liquids around will likely attract any ants around. (Remember that the total body mass of ants on this planet out-weighs that of humans — there are a lot.)


Scorpions and stinging millipedes keep away from people (just shake your shoes out before putting them on if they’ve been left unattended for long).


Stay away from dangerous snakes: cobras, kraits, and vipers. They don’t want to meet you either, so watch your step in overgrown areas and you should be fine. Hospitals stock anti-venom serums.

You may encounter leeches if you hike through damp forests (around Krabi they are terrestrial, not aquatic). The best defense is to cover up and use insect repellant. (Gently peel them away with a finger starting at the narrow head area. A leech bite is not infectious, but the contents of their stomach may be, so don’t squash, pull them hard, burn, or use salt to get them off.)


Flies aren’t usually a particular menace. They’re around sometime, but usually not in great numbers.


Unlike many ‘civilized’ countries, Krabi does not have biting horseflies, Mayflies, jiggers, mites, or infectious ticks. Visitors to North America in summer have far more cause of complaints about insects than in Krabi.


However, any kind of bite can get infected if scratched. Use anti-itch and antibacterial creams.


Cockroaches are ugly and have a bad reputation. They can carry infections but are usually harmless. In some establishments, bedbugs may be a problem (similar to many places and ‘civilized’ cities like New York and London).


Jing-johk lizards (gecko) can surprise one when they dart out from a hiding place but they are gentle, retiring creatures. Their bigger cousins, the tukae, are noise and really, truly ugly (to non-mates) but again prefer to stay away from humans.


In some bays during certain seasons, there are tiny sea-mites that induce a mild sting or itch. A quick wash with fresh water will get rid of the sensation.


Sea urchins should be avoided. They hang around rocks, and their long, strong spines can go through rubber shoes. An urchin stab stings badly, swells, and can get infectious quickly.


The same is true for stingrays, whose tail spike can stab you, leave a deep wound, swell, and ache painfully for days. When entering the water, shuffle your feet so that any of the rays that are dug into the sand will swim away. Stingrays do not attack, but they do not like to be stepped on or threatened. They'll react with an upward lashing of the tail where their sharp barb stands up like a spike.




Dangerous box jellyfish have been found in Krabi waters and have been responsible for serious stings, including one death in Koh Lanta. The incidence of stings is very low, but the possibility is always there.


Before going swimming, you should ask other travelers or locals if jellyfish are around (the box jellyfish is called Mang Poon Fai—fire jellyfish). If they answer in the affirmative, take special precautions.


You should ALWAYS check the water before you or your children step in, even in the shallow beach area. Keep away from beached jellyfish. If possible, carry a plastic bottle full of plain white vinegar to the beach to neutralize the Box Jellyfish's stinging.


One possible precaution is to wear a lightweight lycra stinger suit that protects most of the body.


Bluebottles or Portuguese Man’o War jellyfish have been seen in Phuket, but not Krabi. They are distinctive and easy to spot and identify. Keep away from them also.

Photo Above: Sea Urchins with Dangerous Spines
Gecko or Jing-Jok
Harmless But Can Surprise You
Russel Viper

                             Courtesty of Wikipedia Commons
Sea Urchin Spines
Can Cause Painful Wounds
Stingrays Hide in the Sand
Box Jellyfish Tentacles Contain Strong Poison. They Detach & Stick to the Skin.