Thanks for the query to ATD for an opinion,
The typical symptom of holding the buldge in vagina to poop is typical of a posterior rectovaginal septal defect leading to formation of a RECTOCELE.
There is no other way but a surgical correction which is offered for the same in form of colpo-perineorrhaphy with MOSCOWITZ's repair.
You may discuss the option with your physician and take an informed decision.
I hope I have answered your query in detail,
Wishing you good health and quality lifestyle,
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.