My Mother In Law Has 3rd Degree Uterine Prolapse, Rectocele

My mother in law has 3rd degree uterine prolapse, rectocele and cystocele. She is 76 years. There is a discharge also. We are from bangarpet. The doc says she is very weak for a surgery. Dr. Parul Kotdawala referred us to u. Please guide. If she has to have a surgery can we wait for a few months as her husband had a hip surgery a month ago and needs someore time to recover.