=Course.=--The period of incubation generally varies within wide limits, as mentioned above under classification of the various types; it may be as short as a few hours or may extend to ten days, or possibly even longer. Usually it is from two to five days. The early symptoms consist of discomfort along the course of the urethra, chemosis or edema, and swelling of the meatus. Within a short time after these symptoms the characteristic discharge appears. It may at first be viscid, but soon becomes purulent, and then more or less profuse, while urination gives rise to great discomfort. By the end of the first week the discharge is usually grayish in color, thick, continuous, and so profuse as to equal in volume 20 to 50 Cc. in twenty-four hours. The lesion is not confined to the urethra, and soon spreads to the peri-urethral tissues and thence to the lymphatics. A peri-urethritis with venous engorgement is added to the urethritis, and there is such an obstruction of the return circulation as to produce swelling and edema of the prepuce; this not only makes access to the urethra difficult, but conceals any excoriation and ulceration which may be going on beneath it. Sometimes this tumefaction proceeds to a degree where gangrene results. All these local disturbances will be accompanied by more or less lymphatic involvement in the groins and in the perineum, with great soreness and tenderness throughout the entire genital tract. _Chordee_ (painful erection) is a common and painful complication of this stage of the disease. Finally a well-marked degree of _auto-intoxication_, with its ordinary febrile and septic manifestations, may ensue. As the disease spreads farther back into the deep urethra there is irritability of the bladder, while in severe cases the frequent attempts at urination thus excited, with the accompanying pain during the act of expelling a few drops of urine, are distressing features of the disease. The pains are not limited to the organs involved, but are often referred to the back, to the perineum, and down the thighs. The symptoms above referred to belong to a well-marked case of acute specific type. There may be milder manifestations of each kind, and occasionally a case will run its course with but a minimum of the difficulties and discomforts above mentioned. Sometimes by the end of the third week, usually before, the disease will show a tendency to subside, even if inadequately treated. The inflammatory symptoms become less marked, the discharge thinner and less voluminous, until perhaps by the end of the seventh week there is noticed only a small amount when the patient rises in the morning. With all this apparent and spontaneous improvement there may be present, nevertheless, a serious and distressing amount of peri-urethral infiltration, which will soon be followed by cicatricial contraction and the formation of a _stricture_, the most frequent sequel of gonorrhea.