Penile arteriovenous fistula is a condition in which blood leaks out of the penis from small unclosed cavernous blood vessels during an erection due to an abnormal venous passage or venous occlusion disorder. With an abnormal passage between the arteries and veins of the penis, blood from the arteries is injected directly into the veins, which can lead to an abnormal erection, resulting in the development of an abnormal erection. Penile arteriovenous fistula requires prompt treatment and can be effectively treated with methods such as interventional embolization, which in turn relieves the symptoms. Patients who have undergone arteriovenous fistula surgery should undergo regular follow-up examinations in order to determine whether the arteriovenous fistula has been successfully established. Patients with penile arteriovenous fistula are advised to go to a regular hospital and consult a professional doctor to avoid blind treatment.