A teen who had experienced years of nasal congestion along with a mysterious “foul odor” when he blew his nose turned out to have a BB gun pellet lodged in his nose, which had been there for about eight years, according to a new report.

The teen first visited doctors for his symptoms when he was 15 years old. He said he had experienced congestion for several years along with a reduced sense of smell, according to the report, published Feb. 18 in the journal JAMA Otolaryngology–Head & Neck Surgery.