Despite breast cancer being the most common among Japanese women, the risk of developing noncancer diseases among female breast cancer survivors has not been explored in detail. Therefore, researchers at the University of Tsukuba analyzed medical claims data to determine the timing and extent of noncancer disease risks among female breast cancer survivors in comparison with age-matched women without breast cancer.

Researchers at University of Tsukuba have found that the severity of menstrual-related symptoms, such as dysmenorrhea and premenstrual syndrome, may vary depending on exercise habits. Their study suggests that strategies to manage these symptoms should be tailored to individual lifestyles, particularly physical activity levels.