A doctor offering £150 circumcisions at his private clinic in Essex left young boys in agonising pain, a disciplinary panel has heard.
Dr Aziz Chaudry allegedly did not adequately ensure young boys were fully anaesthetised, The General Medical Council (GMC) was told.
He is also accused of not fully informing the families of the processes involved at his clinic in Clacton.
Dr Chaudry admits failures over notekeeping but denies misconduct.
The hearing was told young boys were restrained in pain.
One boy's family was told he may need plastic surgery to correct damage, the GMC's Fitness to Practise Panel was told. Another boy, aged four, was taken to hospital after the operation.
Complaints from families
After one of the operations on a four-year-old in 2006, Dr Chaudry cleared a blood clot from the boy without washing his hands or wearing gloves, it was claimed.
The allegations against the doctor, who claimed to have more than 20 years' experience, were made after complaints from the Muslim families of five boys.
Dr Chaudry allowed two of the patients to leave hospital "when it was inappropriate to do so", the hearing was told.
A mother of three brothers to undergo surgery was told "words to the effect of there were no risks involved...", counsel for the GMC Nimi Bruce said. Yet days afterwards, the woman's 22-month-old was taken to hospital with an infection.
The hearing was told Dr Chaudry was "very dismissive" about the turn of events.
Another child, seven-year-old "Patient E" started to yell with pain in the days after surgery and had a three-day stay in Colchester Hospital.
The hearing continues.