To determine whether the corpus cavernosum is damaged, you can start from understanding the cause of the disease, symptoms, and imaging tests. 1. Understanding the cause: It is necessary to know whether there is any penile trauma, or whether there is any sudden penile pain due to sexual life and other reasons. 2. Symptoms: Physical examination can be done to see if there are hematomas, bruises, or bruises in the subcutaneous area of the penis. Usually, if the white membrane of the corpus cavernosum is broken, the blood in it will flow to the subcutaneous area and cause hematoma. If the surface of the corpus cavernosum is hematomatous and the pain increases when touched, the possibility of damage is high, and the diagnosis can be further clarified by imaging tests. 3. Imaging examination: you can observe whether the white membrane of the corpus cavernosum is damaged through imaging methods, such as penile ultrasound, penile imaging, etc., to understand the specific situation of hematoma. If there is damage to the corpus cavernosum, it is necessary to go to the hospital in time to improve the examination, clarify the degree of damage, and carry out targeted treatment as soon as possible.