Friday the 13th is traditionally known as an unlucky day. Apparently there is a recognised phobia against the number 13 called Triskaidekaphobia which is also associated with Friday the 13th.

While most of us won't worry about silly superstition (come on now, we're living in the 21st Century, people!), I'd suggest you take it easy and play it safe when it comes to getting frisky this Friday. Who knows? You could end up with one or several of these sexual injuries:

Back that up a little?

Some of the strangest things Dr Marijan Korsic has had to remove from from his patients' rear ends include a neon lamp, kitchen utensils and a leg of lamb. One unfortunate thrill seeker put his life in danger when the neon lamp he had claimed as a sex toy actually exploded in his behind leaving him in a rather precarious position to say the least.

Dr Korsic told The Sun newspaper that it's not easy to get people to admit to the whole story from the beginning. He usually has to ask them what symptoms they have before he is able to get to the bottom of it all.

Interestingly, most of the patients he sees are educated, middle class married men and women who are just looking to spice things up a bit.

A smooching promise

Think kissing is the safest way to get fresh with your partner? Think again. One woman in China warns you to proceed with caution when doing the tongue-go because too much snogging can leave you deaf.

That's right folks. According to a doctor who allegedly treated the young lady, the pressure in her ears decompressed from having her mouth open and straining her jaw muscles too much, causing her eardrum to "pull out" and causing a "breakdown of the ear". A strange injury indeed.

Always spit

Accidently swallowing the condom is apparently also possible. I imagine this happens during oral sex and is a fairly realistic danger. So keep your eye on that love glove this Friday the 13th!

Impossible fractures

The over-publicised yet unfailingly cringeworthy breaking of the penis is also a somewhat realistic danger. If you're into WWE-type sexual trysts, keep an eye on your love wand to make sure it isn't the subject of a Knee Drop Bulldog move. The end result is nearly never good. Aside from the searing pain you'll feel, your partner will know something is not right by the popping or snapping sound they'll hear...

In the hot tub

If you're into getting down and dirty in the hot tub beware of getting too personal with the water jet says msnbc.com writer Brian Alexander because you could end up with air in your abdomen resulting in all kinds of scary complications.

More of us than we realise

The Telegraph.co.uk reported that at least a third of adults in the UK have sustained some kind of sexual injury. From pulling muscles and fracturing bones, to more bizarre incidents, sex isn't the tame activity it was once known as.

Surprisingly, the most dangerous place to have sex is the couch where, because of used crockery left in the lounge, you could find yourselves making love amongst a glass and porcelain mine field.

Make no mistake, sex can be a hazardous pastime, but with a little extra care, you're likely to survive to see another day.