There are frequent malformations of the Penis. Sometimes it will grow in such a way that, when erect, it turns one side or the other, so that association is painful and very difficult. This is generally caused by contraction of the skin or muscles, and is very easily remedied by carefully cutting them in the proper place. Sometimes a one-sided Penis is the result of aneurism, swelling of the veins, or unnatural erections. These causes generally form tumors, which must first be reduced before a proper action can be restored. Cold astringent lotions, used constantly, will generally cure these tumors, though it is sometimes necessary to bind some smooth, hard substance firmly on to them—a piece of horn or ivory being the most suitable. Frequently the cord at the end of the Penis, which binds the prepuce, will be so short as to pull down the end of the Glans and thus prevent a proper connection with the female. This cord, when too short, will often break; but the best way is to cut it carefully either with a sharp knife or a pair of scissors. A Penis with a head too large is a malformation caused by boyish pranks in handling the organ during its growth. The causes of a non-development of the Penis are various. Sometimes a general torpor of the Testes retards its growth. Disease or excess will frequently make it wither and decrease in size; and many a youth by early masturbation prevents the full development of the organ. Injuries to the Testes, during early childhood, will often stop the growth of the Penis. The Mumps, Scarlet Fever, Measles, Rickets, and Scrofula—each of these diseases will also more or less affect its perfect development. It is nearly impossible to prescribe a remedy for this evil, as much depends upon the temperament of the person affected. In persons of little sexual feeling, I would recommend a rational and moderate use of the organ as Nature intended. The healthy excitement thus produced will tend to its growth. In some men, however, this plan would rather do harm than good—a frequent tepid bath, with brisk rubbing of the muscles, being the proper treatment. A stimulating ointment of some kind might be used to advantage with this latter treatment. A tube to fit over the Penis, with an air-pump, is frequently used by physicians in connection with a shampooing of the muscles, and in some cases this acts beautifully. The lascivious practices of boys, who learn of one another the habit of onanism—their too early connection with females—these and other habits affect the growth and full development of the Penis.