What is handmade sand?

It is not recorded in any medical books and journals except that it can be seen in some novels and plays. Shougong, is an alias of gecko. Jin Dynasty "Museum" recorded: If you feed the gecko with vermilion sand, the gecko's whole body will turn red. After eating a full seven pounds of cinnabar, the gecko pounded and a thousand hammers and pestles, and then use it to point the woman's limbs, the color will not fade. Only after intercourse, its color will fade fade fade, is called "Shougong sand". With this legend in the wonderful and simple can represent the woman "chastity" method, regardless of whether it is true, some dynasties will be selected into the palace of the woman point "Shougong sand", as its whether there is a crime of obscenity, the sign of the precepts. Passed on, the blackmail, there will be many later martial arts novels authors borrowed "Shou Gong Sha" to do the article. Since the "sand of the womb" is man-made added, rather than a woman's natural, in the unmarried women looking for the so-called "sand of the womb", can only show that the person's boredom and ignorance. By the same token, the presence or absence of the "womb sand" has nothing to do with whether the hymen is intact or not, not to mention whether or not they have had sexual relations. It is unreasonable to judge whether a person is a virgin or not by the presence or absence of the "womb sand". If modern people will be the traditional fallacy as a treasure, his degree of ignorance can be imagined!