Uterine artery embolisation: this can be a radiological process whereby the leading blood supply towards the uterus is blocked. This starves and deprives the fibroids of blood source and also the fibroids undergo degeneration and shrinks. Extracellular matrix and collagen: too much accumulation of extracellular matrix (a form of protein https://www.sgvascularctr.com/all-you-need-to-know-about-uterine-fibroids/