We have experienced 2 cases of intracavernous induration after injuries to the external genital parts caused by a motorcycle tank. Case 1. A 28-year-old male was admitted to our department complaining of painless indurations of the penile radix. Cavernosography showed segmental filling defect in left corpus cavernosum. Because erectile disturbance was noted, resection of the induration was carried out. Microscopic section of the excised tissue showed only fibrosis. Case 2. A 20-year-old male visited our clinic with chief complaints of induration of the penile radix and erectile disturbance. Corpus cavernosography demonstrated filling defect in bilateral corpus cavernosum. We recommended the resection of the indurations, but the patient refused. A brief review on etiology and therapy of intracavernous fibrosis was made.