A man accused of removing another man's testicle during a meeting in a Port Macquarie motel room has pleaded guilty to a string of charges.

Allan George Matthews, 57, appeared in Port Macquarie Local Court on Wednesday morning for the first time since his arrest in Glen Innes, last month.

A man has pleaded guilty after 'unauthorised' surgery to remove another's testicle.

During the proceedings, Matthews' solicitor Douglas Hannaway entered pleas of guilty to removing tissue from the body of another without consent or authority.

He has pleaded not guilty to the more serious charge of reckless grievous bodily harm.