The former Coronation Street actress revealed her addiction to sex while speaking to Piers Morgan on Life Stories, which was filmed on Tuesday (September 11).
"I like sex. What's the problem with being a sexaholic? I just like shagging," she is quoted as saying in The Sun.
Welch added that she would like to have had sex with her former co-star Bill Roache when he was younger, after he claimed to have bedded over 1,000 women.
"I did not know Bill back then. If I did I would have made mincemeat out of him," she said.
She also revealed that she had not had sex with her former husband Tim Healy for three years by the time they announced their split in February.
The Celebrity Big Brother winner recently alleged that Healy had already cheated on her before she met current partner Lincoln Townley.
Denise Welch will appear on Life Stories on September 28 on ITV1.