However, the space toilet in the space station can't filter blood (the water in the space station is precious, and the urine should be recycled), so the female astronauts can't use the toilet during the physiological period, so they can only use tampons, tampons and diapers. For female astronauts/astronauts, if it is a short-term task, you can choose to avoid the physiological period or use drugs to adjust. Liu Yang and Wang Yaping, two female astronauts in China, are on a short-term mission for more than ten days to avoid the physiological period.
If it is a long-term task, such as staying in the space station for several months or even more than ten months, then the physiological period must be considered. Some female astronauts stationed in the space station for a long time will use mixed hormone contraceptives to adjust the physiological period. If they don't take medicine to adjust, they will use some sanitary products. These sanitary products are the same as those used on the earth, and their functions will not be affected by gravity, but they are troublesome to replace and inconvenient to wash. But the temperature in the space station is constant, the air is clean and there are few pathogens. Some physiological diseases that will appear on the earth may not appear on the space station.
Sally Ride, the first American astronaut in space, once mentioned that engineers didn't know how many tampons she needed to carry before her space mission. I asked her, 100 is enough? Sally replied, that's too much. Half is enough. By 2020, 65 women have gone into space. Peggy Whitson spent the longest time in space, 665 days. Christina Koch, who had the longest single mission, stayed in space for 328 consecutive days.