Hypospadias is a common abnormality in children's urinary system, with a prevalence rate of about 300%. Sometimes accompanied by cryptorchidism. Symptoms: hypospadias, as the name implies, means that the urethral orifice is located at a lower position than the normal position, such as in the coronary sulcus, under the penis, and even serious to the perineum. Another important abnormality is penile curvature, which is caused by fibrous tissue on the ventral side of the penis. The patient's foreskin is often flaky, located on the back of the penis, and cannot wrap the glans penis like a normal foreskin. This disease may only affect the appearance because of its slight degree, or it may be serious enough to need to squat and urinate, and it is impossible to erect normally. Treatment: surgical correction of penile curvature and urethroplasty. Depending on the severity of the anomaly, the operation can be completed at one time or in stages. The ideal age for surgery is about one year old. The most common postoperative complication is fistula. Hypospadias is a common urinary tract disease. The normal urethral orifice is located at the top of the glans penis. If the opening is in another position (Figure 1), there may be a problem. The urethral orifice of children with hypospadias is located on the ventral side of penis. According to the degree of hypospadias, it may be under the glans penis, scrotum (Figure 2) or even in the perineum. In addition to abnormal urethral orifice, hypospadias often has penile curvature. The penis bends because some fibrous tissue is formed on the ventral side of the penis, which pulls the glans penis and makes the penis bend. This phenomenon is especially obvious when the penis is erect, so it is also called painful erection. The prepuce of hypospadias often does not cover the glans, but a piece of skin on the back of penis. Hypospadias is sometimes associated with cryptorchidism. Severe hypospadias, such as perineum, plus bilateral cryptorchidism, will make it difficult to determine the sex, and it is necessary to check the chromosomes to know the exact sex. Children with hypospadias have more chances to get hernia. The ideal treatment age for hypospadias is from six months to one year old. The older you get, the more obvious it is, and the more difficult it is to correct penile curvature. The older you get, the more serious the psychological impact of the operation will be. There are many surgical methods for hypospadias. Mild and moderate cleft palate can be treated by one-time operation or outpatient operation. In severe cases, it needs two or more surgical corrections, and it is more convenient to be hospitalized because of the need to place urinary catheter and change medicine after operation. Except for a few severe hypospadias, most patients have good surgical results.