Menstruation, as a unique physiological phenomenon in women, arrives on schedule every month, and its normality directly relates to women's health status and even...
The menstrual cycle is regulated by the levels of estrogen and progesterone, and menstrual delay often stems from cycle fluctuations. So, what factors in...
Menstruation is a cyclical physiological phenomenon in women, usually lasting about a week is considered normal. However, some women find that their menstrual period...