Occlusion of the urethral meatus is variously called "pinpoint meatus," "meatitis," "diaper ulcer," "acid burn" or "urine sore." Each term designates a particular stage of the same disease and attempts to indicate its etiologic factor.
The pathologic condition under discussion is seen in a great number of boys during the first year of life but may become apparent only after the second or third year.
The clinical picture (fig. 1) begins with redness of the urinary meatus, followed by slight edema of the urethral lips with a seropurulent discharge and occasional bleeding. As the condition progresses the acute inflammation subsides, turning into a chronic inflammation with a discharge and with gluing together of the lips. Minute ulcers appear on the inner side of the mucosa, gradually extending outward and involving the skin. At this stage the formation of crusts occurs. Urination becomes painful. The scab is torn off