Therapy I have a fibroid fifteen centimeters in diameter that causes me to urinate very steadily. Subserous Fibroids:- Subserosal, develop on the outer wall of the uterus and they are normally unnoticed until they develop into so big that they will press on different organs surrounding the uterus such because the bladder or rectum. Chamomile can treatment fibroids due to its anti-inflammatory and antiseptic properties.