The most common clinical cause of perineal swelling and pain is inflammation of the perineum itself, which can cause localized redness, swelling, heat and pain. In addition, inflammation of the surrounding organs, such as the vagina, may cause perineal swelling and pain, which may be manifested as increased vaginal discharge, yellowish color or odor of the discharge. Another reason is the perineal swelling and pain caused by the inflammation of the rectum itself. It is recommended to take a hot bath to promote local blood circulation, so that the inflammation can be absorbed as soon as possible, while giving antibiotics for treatment.