Scrotal infection is often a condition caused by scrotal dampness. Additional pathological factors such as injury to the scrotum, urinary extravasation, and diabetes mellitus can also lead to scrotal infection. The causative organisms are often Staphylococcus aureus, Pseudomonas aeruginosa, and Streptococcus. The symptoms of scrotal infection start as red, slightly elevated spots with clear edges that gradually enlarge, are scaly, itchy and gradually change from red to purplish red, brown or skin color. If left untreated, the damage will spread and expand to the four surrounding areas, and the center of the disease will gradually heal itself and develop to the surrounding areas. The edges of the erythema are more clearly inflamed and may be covered with active rashes, blisters, scabs, or even erosions. The central healing, forming an annular or semi-annular shape, manifests as scaly patches outside the folds of the scrotum and leaves temporary hyperpigmentation in the prognosis. The above is for reference only, please refer to the doctor’s face-to-face guidance for specific medication and treatment.