Objective: This work was undertaken to study and evaluate the posterior rectocele.Study Design : A total of 70 patients 
were submitted to defecography due to chronic constipation. 
Results: Nine patients were found to have posterior rectocele. In all patients levator ani dysfunction was present. Five 
patients had combined anterior and posterior rectocele and, all were females. Four patients had only posterior rectocele and all were males. 
Conclusion: Posterior rectocele is an uncommon rectal wall disorder. Levater ani dysfunction plays a major role in posterior rectocele existence.