Will menstruation or ovulation happen after a bilateral ovariectomy?

Neither menstruation nor ovulation will occur after a bilateral ovariectomy, which is the surgical removal of both ovaries. The ovaries are responsible for producing the hormones estrogen and progesterone, which are necessary for menstruation and ovulation. Without ovaries, the production of these hormones ceases, leading to the absence of menstrual cycles and the inability to ovulate.