The uterus is part of the body that often become the target of the growth of fibroids, which is a kind of solids formed from the uterine muscle. cause is not known for certain, but certainly, the fibroid will grow if met with the hormone estrogen. if the fibroid followed by excessive bleeding or pressure on the waist and pain, of course this is not something that reassure. You need a gynecologist to consult and find a way out. when to alert? fibroids are large enough to damage the reproductive organs around it. for this, should be removed because it can cause infertility. doter usually will let fibroids if not cause any problems for health.