大千世界,无奇不有。人类虽然只有男女两种性别之分,但生理现象各异。随着科学技术的发展,人们对普遍的生理现象或疾病已有了充分的了解和掌握,但对一些特殊的生理现象或疾病却并未认识。有些虽然已为专门机构和专职人员了解,但广大人民群众并不知晓,常常受到困扰,有些还造成了极大的误会,导致了一幕幕悲剧的发生。 Worlds, full of wonders. Although human beings are divided into two genders, they have different physiological phenomena. With the development of science and technology, people have fully understood and mastered the common physiological phenomena or diseases, but they do not know some special physiological phenomena or diseases. Although some of them have known themselves to specialized agencies and full-time personnel, the majority of the people are not aware of and are often disturbed. Some of them have also caused great misunderstandings and led to the occurrence of tragedies.