I just wondered if anyone else had heard of this. Please be aware it is not nice reading. My female guinea 'Poppy'of 4 yrs had large ovarian cysts so my vet spayed her and removed them on Tuesday. She was recovering extremely well and back in cage with her mate who has always been dominated by her. This morning (Friday) we found her and she was dead and literally open from her neck down and her innards were out. The vet inspected her and he said it appeared as if all the outer sutures had been chewn through as the knots were still intact. The inner suture which apparently is one running stitch had also been chewed through. He checked the thread for strength and was unable to break it. Therefore, he feels that either Poppy or her mate must have chewed the sutures. He feels more likely to have been Poppy herself. We are obviously devastated and wonder if anyone has ever heard of such a thing? She was fine last night and not bothering with her stitches at all. I have every faith in my vet and he is as upset as we are.