On August 12 2020, a Vietnamese man went to the doctor because he was experiencing pain and believed something had got into his nose.
When a doctor examined him, he discovered a leech was attached to the man's nasal canal and had damaged several parts of his nasal passages, causing the pain.
The man said he had been swimming in a stream and believed that was when the leech entered his nose.
He will need several days of treatment to heal the wound.
