A 35-year-old professed shaman has confessed to charges relating to videos of him casting spells over clients' anuses and genitals, and promised to stop doing it.

Apiworasit Puangsaeng, aka Ajarn Man, made headlines in Thai media recently after videos of him performing rites casting spells on clients' private parts went viral.

Mr Apiworasit said the videos had been taken by staff and friends and were intended to be shared only with potential clients, to inform them of his services.

They were not intended for pornographic use, or to be made public at all, he said.

He had been casting spells over clients' private areas for about a decade, and they usually came back for repeats, he said. His clients included politicians and celebrities, he said.

Mr Apiworasit agreed that the rites were improper. He apologised for performing them and promised to stop offering such services, and to focus his spells on other areas of the body - such as faces, arms and hands.

Police said Mr Apiworasit would be initially charged with putting pornographic information into computer systems which were accessible to the public.