A man who unlawfully removed another man's testicle as part of an amateur gender reassignment surgery in a motel room on the NSW mid-north coast has avoided a jail term.

Key points: 58-year-old Allan George Matthews is placed on a five-year good behaviour bond for unlawfully removing another man's testicles

58-year-old Allan George Matthews is placed on a five-year good behaviour bond for unlawfully removing another man's testicles The victim was seeking gender reassignment from male to female

The victim was seeking gender reassignment from male to female Matthews told the victim he was "medically trained" and "happy to help"

Allan George Matthews, 58, appeared in the Port Macquarie District Court on Friday where he was placed on a five-year good behaviour bond.

Matthews had earlier pleaded guilty to a string of charges including reckless grievous bodily harm.

In May 2016, Matthews' then 52-year-old victim attended a Port Macquarie motel room after posting an advertisement on social media requesting assistance with a medical issue.

The court heard the victim was seeking a gender reassignment from male to female.

Matthews responded he was "medically trained and had an extensive medical kit and happy to help to assist with your pathway".

More than 10 days after the procedure the victim attended a medical centre where the doctor noticed an unqualified doctor had performed the procedure.

The victim underwent surgery at Port Macquarie Base Hospital.

In June last year, Matthews was arrested and charged and admitted he did not have any medical qualifications.

Matthews 'did not seek or receive payment'

In sentencing, Judge Clive Jeffreys said the case was a unique one and he had no similar case to inform him but said it was the lowest end of seriousness for this offence.

Judge Jeffreys said it was clear Matthews offended at the request of the complainant and did not seek or receive any payment or favours.

The court heard Matthews had first aid certificates and some vet experience and felt sorry for the victim.

The judge said Matthews was hardworking and a well-respected aircraft engineer and appeared to be genuinely motived to help with the gender reassignment.

The judge noted his loss of career and treatment since the matter was made public.

He said Matthews had already suffered as a result of committing the offence, had shown contrition and did not present as a danger to society and was unlikely to reoffend.

Judge Jeffreys said the offender said he was very remorseful, exercised poor judgment and was very naive.

He deferred from passing a sentence and instead convicted Matthews and placed him on a good behaviour bond for five years for causing grievous bodily harm and reckless bodily harm.

He was also convicted without any further penalty for removing tissue from the body of another without consent/authority and possessing/attempting to prescribe a restricted substance.