A Taiwanese man is to spend up to four years in prison after performing an illegal castration in his kitchen last year, a US court has ruled.
Suo-Shan Wang, a 29-year-old who is in the US on a student visa, carried out the operation on his kitchen table at his home in suburban Detroit last June, the Associated Press reports.
His client had decided on castration in order to curb his sex drive and thereby prevent the spread of a sexually transmitted disease he was carrying. He started haemorrhaging shortly after leaving Mr Wang's house.
Mr Wang told police his grandparents had taught him how to castrate, and that he had practised first on a dog, then on the dog's owner and three of the owner's friends in Australia, prosecutors said.
The court found him guilty of practising medicine without a licence.
Mr Wang said he had merely wanted to help someone who could not afford a legal castration, but told the court he regretted his action.
"Ever since that day, I really think that what I did was very wrong," he said.
Despite Mr Wang's apparently good intentions, and show of remorse, the judge said that he was concerned Mr Wang "would continue this" if he were not sufficiently punished.
Mr Wang subsequently received a tougher sentence than recommended by the local probation department.