A tradesman who got his scrotum caught in a handheld grinder has been hospitalised.

The 19-year-old from Sydney was using the electrical grinder at a home at around 2.30pm on Friday when his testicles got tangled in the power tool.

The incident happened while he was working at a house in Hibiscus Court, in the western Sydney suburb of St Clair, the Daily Telegraph reported.

He has been taken to Nepean Hospital in Kingswood, Penrith, where he is believed to be in a stable condition.

The incident happened around 2.30pm on Friday afternoon while the man was working on a house in Hibiscus Court (pictured) in the western Sydney suburb of St Clair

NSW paramedics were called to the scene soon after the incident and found the man conscious when they arrived