Glans is an inflammation of the mucous membrane of the glans, which can be characterized by edema, pain, itching and other discomforts. It may be caused by infectious factors, irritating factors, traumatic factors and other reasons. 1. Infectious factors: when the body’s ability to resist disease decreases or when it comes into contact with other pathogens, it may lead to the proliferation of pathogenic microorganisms such as bacteria, candida, trichomonas, and so on, resulting in glans inflammation. Due to the stimulation of inflammation, edema may appear. 2. Irritating factors: sweat, hygiene products, washing products, clothing and topical drugs can stimulate local inflammation, resulting in edema. 3. Traumatic factors: trauma damage to the glans skin, pants zipper pinch, sexual intercourse or itching scratches and so on may lead to glansitis, resulting in edema. In addition, glans with edema can also be seen in other diseases, it is recommended that patients go to the hospital in time to avoid delay.