Urinary leakage in children can be caused by congenital dysplasia of the urinary organs, occult spina bifida, and circumcision. 1. Congenital dysplasia of urinary organs: it mostly occurs in female children, when there is poor sacral closure and congenital renal development, it can lead to the opening of the distal ureter in the urethra, and the bladder sphincter is not sufficiently innervated, which will lead to urinary leakage. 2. Recessive spina bifida: due to genetic factors and the influence of pregnancy, it can lead to the occurrence of recessive spina bifida, and when it involves the neural structures in the vertebral canal, it can lead to neurological symptoms, which can lead to the emergence of urinary urgency and urine leakage in children during the daytime. 3. Hypospadias: Due to hypospadias and narrowing of the foreskin, part of the urine is stored in the foreskin during urination, and urine leakage can occur after urination. Children should consult a doctor in time when seepage of urine, under the guidance of specialists to actively carry out appropriate treatment, will help to alleviate the discomfort symptoms as soon as possible.