corpus albicans

The corpus albicans is a scar-like structure that forms in the ovary after the corpus luteum degenerates. The corpus luteum is a temporary yellow endocrine structure that develops from a ruptured ovarian follicle after ovulation. It plays a crucial role in the female reproductive cycle by secreting the hormones progesterone and estrogens.1

If fertilization does not occur, the corpus luteum shrinks and becomes inactive after about 10–14 days, leading to menstruation. This degenerated structure then transforms into the corpus albicans, which persists for a few months before disappearing. If fertilization does occur, the corpus luteum remains active for at least the first two months of pregnancy, supporting the developing embryo until the placenta takes over hormone production.2