It does not appear to have worked.
"It became indurated around the minuscule entry wound where he had failed multiple attempts at injecting the bodily fluid causing an extravasation of semen into the soft tissues".
The man went to a Dublin hospital when he began experiencing severe and sudden onset back pain, which he attributed to his lifting of a heavy steel object three days earlier.
At this point, the man revealed his homespun back pain remedy - injecting the semen into his own arm once a month, for 18 months, using a hypodermic needle he bought online. "Upon this occasion the patient had injected three "doses" of semen intra-vascularly and intra-muscularly".
During a physical exam, doctors also noticed his arm was red and swollen.
But the patient discharged himself from Adelaide and Meath Hospital before doctors had a chance to remove the semen from his arm.
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'He had devised this "cure" independent of any medical advice, ' Dr Lisa Dunne wrote in a case report in the Irish Medical Journal.
A nutty Irishman landed in the hospital after he took matters into his own hands to treat his back pain - by injecting himself with his own semen, according to a report.
"Unable to find any other cases in the medical literature of a person injecting themselves with semen for any reason - and coming up empty even on "a search of more eclectic internet sites and forums" - Dr. L. Dunne wrote up the man's case for the January of the Irish Medical Journal in an article titled "'Semenly' Harmless Back Pain".
"While suicide attempt by intravenous injection of harmful substances is well described, this unique case demonstrates risks involved with innovative treatments prior to clinical research in the form of phased trials inclusive of safety and efficacy assessments", the report continues.
This isn't the first time we've seen something. like this.
Translation: Don't inject yourself with anything without a doctor's approval, including semen.