Women are at risk of having a cystocele if they have given birth, have a hard time with passing stool, have a chronic cough, lift heavy objects, Causes include childbirth, constipation, chronic cough, or have had other surgeries of the reproductive organs. Other things that may cause cystocele is having a hysterectomy, a family history of cystocele and being overweight. The reason why the bladder may bulge into the vagina is that the wall of the vagina becomes weak.