Fungal balanitis is a common male genital disease caused by Candida albicans infection. It is more common in young and middle-aged people between the ages of 20 and 50. Because of the vigorous secretion of sebaceous glands in young and middle-aged people, the vulva is moist, and they wear thicker underwear or the vulva is not clean enough, it is very easy for the fungi scattered in the air or parasitic here to take root and sprout, causing trouble and may be transmitted to the spouse. Many young and middle-aged women often wash their vaginas due to changes in their own physical constitution, taking antibiotics and other drugs, or excessive cleanliness, causing changes in the acid-base environment in the vagina, and the parasitic bacteria that normally restrain each other are out of balance. The fungi (molds) parasitic here take advantage of the situation and enter, causing inflammation of the patient's vulva and vagina. After sex, it is very likely to be transmitted to the spouse, causing fungal balanitis.