Bing Xin, a great writer, said, "Without women, there would be no five tenths of truth, six tenths of goodness and seven tenths of beauty." God endowed women with sincerity, kindness and beauty, and also endowed them with unique physiological characteristics. For example, there must be a few days of "official holidays" every month to realize their great maternal "pregnancy and childbirth". These unique physiological characteristics have brought a lot of confusion to women.
These puzzles are also their privacy, and introverted women are always embarrassed to talk about these privacy. This is also human nature. In view of this specific situation, we have made a comprehensive and systematic exposition of women's physical and mental health knowledge, emotional confusion and perfect sex from a scientific point of view. Let women find the physiological problems they want to solve from this book.