During missions, the risk for a crew member to require anesthesiology in medical care, including surgery, is significant (Komorowski et al., J Cardiothorac Vasc Anesth 30:781, 2016). Future human races may live extraterrestrial lives; menstrual blood flow is not affected by the weightlessness experienced by the body in space. There currently are no operational gynecological or reproductive constraints for women participating in the exploration of the space (Jennings and Baker, Obstet Gynecol Surv 55:109, 2000).