Penile flexion deformity is considered to be caused by hypospadias, cavernous sclerodactyly of the penis, trauma and so on, which can be treated by medication or surgery and so on. 1. Hypospadias: It is usually due to underdevelopment of the urethra, resulting in the urethro-genital groove being on the downward or upward side, which prevents the urethral opening from growing to its normal position, thus causing penile flexion deformity. It can be treated by way of urethral hypospadias plastic reconstruction surgery in a timely manner in the hospital. 2. Penile cavernous sclerosis: generally due to penile inflammation and infection, heredity and other factors, resulting in localized penile cavernous body fibrosis, thus forming a hard knot, which may cause penile flexion deformity. It can be treated with medicines such as verapamil hydrochloride tablets and vitamin E as prescribed by the doctor. If the effect of drug treatment is not obvious, you can go to the hospital in time to take sclerotomy or leucoplasty and other surgical methods for treatment. 3. Trauma: If the penis is hit violently, it may cause damage to the white membrane of the penis, and after healing, local scarring will be formed, which will affect the shape of the penis and appear flexion deformity. It can be treated by urethral dilatation in the hospital. Patients with penile flexion deformity should seek medical diagnosis in time and choose the appropriate treatment according to the actual condition under the guidance of the doctor.