CHAPTER VII
OF MATTERS WHICH ARE INJURIOUS IN THE ACT OF GENERATION
Know, O Vizir (to whom God be good!), that the ills caused by coition are numerous. I will mention to you some of them, which are essential to know, to avoid them.
Let me tell you in the first place that the coition, if performed standing, affects the knee-joints and brings about nervous shiverings; and if performed sideways will predispose your system for gout and sciatica, which resides chiefly in the hip-joint.
Do not mount upon a woman fasting or immediately before making a meal, else you will have pains in your back, you will lose your vigor, and your eyesight will get weaker.
If you do it with the woman bestriding you, your dorsal cord will suffer and your heart will be affected; and if in that position the smallest drop of the secretions of the vagina enters your urethral canal, a stricture may result.
Do not leave your member in the vulva after ejaculation, as this might cause gravel, or softening of the vertebral column, or the rupture of the bloodvessels, or lastly inflammation of the lungs.
Too much exercise after coition is also detrimental.
Avoid washing your member after the copulation, as this may cause canker.
As to coition with old women, it acts like a fatal poison; and it has been said, "Do not rummage old women,
