Hello everyone

I am new to the "frog" world and have acquired 3 red eyed green tree frogs within the last few weeks. One of my females has a large reddish-clean gelanous sack protruding from her rear - this has just developed since last night. I also noticed some blobs of this gel on the top of some of the leaves. I have googled trying to find out what this may be and cannot find any answers - I am hoping someone here with more experience may be able to assist me. I am quite worried about it.

Anita