The video shows a doctor pulling out the leech from the man's nose. The leech was a gigantic one as well.  
MedBound Blog

VIDEO: Doctor Pulls a Gigantic Leech Out of a Man's Nostril

Netizens scratch their heads as to how the leech even got into the man's nose without the man knowing it.

Dr. Amey Patil

Leeches normally bite or get attached to the feet of a human being. However, imagine a parasitic worm in a human's nose.

That's exactly what happened to a man. A leech entered a man's nose! The video has been circulating on various social media platforms. Netizens scratch their heads as to how the leech even got into the man's nose without the man knowing it.

The video shows a doctor pulling out the leech from the man's nose. The leech was a gigantic one as well. The patient seemed relieved after getting it removed.

Leeches have soft and segmented bodies that could lengthen and contract. Leech bites are generally not dangerous, however, very rarely, they can cause anaphylactic or allergic reactions. Leech bite symptoms include an itchy rash at the site, red blotches, swelling, and dizziness.

Leeches have soft and segmented bodies that could lengthen and contract.

Leeches are also used as a therapeutic measure due to their ability to suck blood. They can be used on would. An externally applied leech will detach itself on its own once it is satiated on blood.

(Input from various media sources)

Delhi Red Fort Blast Probe Widens: New FIR, Spycraft Tactics, Foreign Handlers and Nowgam Explosion Add Fresh Twists

Why are Elements Like Radium Dangerous? A Chemist Explains Radioactivity and its Health Effects

Are Berries Safe to Eat? How Worried Should I be About the Pesticide Dimethoate?

Jamnagar Cardiologist Suspended for Performing 105 Unnecessary Heart Procedures Under PM-JAY Scheme

So Your Insurance Dropped Your Doctor. Now What?