Dylan Thomas has received the nickname of "Spider-Man" from his friends and not because he gained super powers, Dylan had a tropical spider under his skin. Not for the squeamish.

The 21-year-old Aussie was abroad with friends when he discovered the strange red trail stretching two inches across his stomach.

Dylan Thomas was told by doctors at the Bali International Medical Centre that he was suffering from an allergic reaction to an insect bite and was sent away with some antihistamine cream.

But three days later, when the red mark began to blister, and almost double in length, Dylan knew there was something wrong.

After going back to the medical centre to see a dermatologist, health professionals were shocked to discover that a tropical spider was burrowing just below the surface of his skin.

Doctors managed to extract the spider from Dylan's abdomen and revealed that the insect had buried itself into the scar from his recent appendix removal.

"It was a bit bigger than the size of a match head," said Dylan about the creature.