Experts believe toilet paper is an ineffective tool for cleaning.
Some believe that wiping with loo roll alone could actually just spread faeces around instead of moving it, and excessive use could even lead to health issues such as anal fissures and urinary tract infections.
Rose George, author of The Big Necessity, said: ''I find it rather baffling that millions of people are walking around with dirty anuses while thinking they are clean.''
Bidets - which are common in mainland Europe and Asia - are recommended by experts because they are believed to be more environmentally friendly than loo roll.
Baby wipes are also preferred by top celebrities such as Will Smith and Will.i.am.
The 'Heartbreaker' rapper advised: ''Get some chocolate, wipe it on a wooden floor, and then try to get it up with some dry towels. You're going to get chocolate in the cracks.''