London:  Women's greatest fear lies in her rear. A study has revealed that a most of the women fear a big bum.

The study has found that most image-conscious women often ask their friends whether their bums look big to seek reassurance as it's one part of their body they can never really see for themselves, a daily reported.

Over half the 1,800 women questioned in the study, based on a survey on behalf of Wizard Jeans, said they worried more about their posteriors than about their breasts or even their stomach.

"You only have to watch women trying on a new pair of jeans to see that their prime concern is always the bit they can't really see for themselves -- their bums.

“They twist and turn in front of the mirror but then, inevitably, ask for  reassurance," fashion expert Sally Allen of Wizard Jeans.