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Leech Socks: How To Keep Leeches from Sucking Up Your Blood

Yes, there is such a thing and yes, it could happen during your travels: if you're headed to a rainforest or to a hot and moist natural destination, do NOT leave your leech socks at home. Period.

Tropical rainforests are wonderful environments but the wetter the weather, the hungrier leeches get for your flesh, a fact most tourism boards and travel agencies will underplay. (If you're thinking eeewwww and you've already read enough, just head to Amazon and buy a pair of insect-repellent socks.)

Otherwise, please keep reading to find out the following: what are leeches, how do you avoid them and how to remove leeches if they should fall upon you). You won't only find leeches in rainforests, you'll also find them in other warm and wet places - lakes, marshes, ponds and the like.

At first sight, they look harmless. I mean - look at this little tiger leech: not attractive, certainly, but not deadly either. 

Leech socks - this tiger leech is on a tree leaf but could fall on you if you brush past itThis tiger leech looks happy - but it would be best to keep it on a leaf rather than have it drop onto my leg

So why worry? Are leeches dangerous? Not in themselves, nor do leeches carry diseases.  

While they may not carry disease, by biting you they create an open wound by slashing into your skin. If you're in the tropics, any open sore or broken skin is much harder to keep clean and more prone to infection and you should do whatever you can to avoid them.

The only time you might actively want to meet a leech is if you indulge in leech therapy, an ancient art and science which is enjoying a resurgence in health circles, but that's a different story.

How to avoid leeches and protect yourself

There are many ways of doing this and buying anti-leech socks is the most obvious and easiest.

But you can do more.

  • Wear lighter colors so you can spot them more easily. If they do fall on you, you can immediately brush them away before they attach themselves to you if they find a gap through your clothes.

  • Assume that any stagnant water has leeches so don't let the water come into contact with your skin.

  • Tuck all your clothes in: roll down your sleeves, tighten your cuffs and do up your collar area. Leeches can wriggle into the tiniest gaps and are quite small - until they've feasted on you, that is. Leeches love delicate skin, like armpits and genitals, so tuck in your trouser bottoms as well.

  • To maximize the effectiveness of your leech-proof socks, spray them with Sawyer's permethrin for clothes and don't forget to spray your clothes and boots while you're at it. This should kill the leech before it starts feasting on you.

  • In addition, if you're seriously concerned you can also apply DEET to your body, or Picaridin, which is considered less toxic (even though DEET's toxicity to humans hasn't been scientifically proven). While it doesn't deal with leeches specifically, this CDC page tells you all about the different chemical repellents.

  • If you're spraying your own clothes with any kind of mosquito or leech repellent, remember that leeches can push looser weaves apart to get to their meal.

  • And if you happen to put your backpack or jacket or anything on the ground in this kind of environment, check every corner for leeches before you put it back on!

How to remove a leech if one takes a liking to you

This is really the worst-case scenario but you should at least know how to do it.

When I visited the Lower Kinabatangan in Borneo, forest leeches were a constant concern. I wore what I call my "Borneo clothing" - hat, socks, every possible kind of insect-repellent clothing - the works!

So here's how to get a leech off (bearing in mind I'm not a doctor and that this is common advice you'll find anywhere):

  • Don't panic. If the leech has been feeding on you, there will be some blood around. The leech feeds on you by pumping a kind of blood anti-coagulant into your bloodstream. While that numbs the pain, it also makes you bleed quite a bit even after the leech is removed. Because of the painkiller, a leech could be feasting on you for quite some time before you notice. The wound can bleed for quite a while but it will stop. Don't worry - you will not bleed to death. 

  • Since you'll rarely be heading into the rainforest alone, a good strategy is to pick a "leech buddy". Choose someone to watch your leeches for you - and you watch theirs. This way, at first alert, you'll be able to brush it off.

  • There's plenty of common wisdom about removing a leech: a lighter flame (ouch, this might hurt you as well as the leech), salt, alcohol, tobacco, your trusty mosquito spray and even spit. The problem with these methods is that the leech might throw up - into the wound, which could mean infection. Still, in my book "encouraging" the leech to detach is much better than the alternative (see below).

  • Some people (braver than I) will try to get rid of leeches by hand: gently slide sideways under the leech's teeth by pushing a fingernail or other hard object under the leech's sucker. If you succeed, quickly flick the beast off before it bites you again - because it will! But... no thanks, not for me.

  • Once the leech is off, use clean paper towels to wipe the area and then disinfect it and spray with hydrogen peroxide, which will help stop the bleeding. Tea tree oil works well too (it's all I had with me in Borneo). Whatever you do, make sure that wound is CLEAN. Bear in mind that after the leech has been removed, you may continue to bleed for quite some time, even up to an hour or more. That's normal. And watch your clothing and try to keep it out of the way, because - lots of blood, enough to make you look like an extra in a zombie movie.

The best leech protection

My recommended product is the basic anti-leech sock below (I have several pairs and never travel to the tropics without them).

Anti Leech Hiking Socks from Amazon

I had a wonderful time in Borneo, trekking through the rainforest and discovering rare birds and animals.

My one fear was running into leeches - but I was lucky (and excessively careful). Wearing these unbelievably chic leech socks (and a head net you can't see) gave me tremendous peace of mind. So I can vouch wholeheartedly for these socks. I walked for hours and not a single leech made it into my socks. That night, at least with me, they went hungry...

Here's why I recommend these socks:

  • They are made of 35% cotton so you can use permethrin or those DEET solutions that are compatible with the polyester (read the label).
  • They are super-effective for the most vulnerable areas - inside your shoes and up your leg.
  • (They're not too fashionable and you'll be anything but elegant. But I prefer to be leech-free...)
  • One size fits all - they're 22"/56cm high.

If you know someone headed for warm and wet areas, please share this page with them or post it on your social media!

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