Postpartum urinary leakage may be due to stress incontinence, urge incontinence, and filling incontinence. 1. Stress incontinence: post-partum pelvic floor muscle relaxation, resulting in changes in the normal structure of the urethra, the vaginal wall and bladder wall bulge, affecting the function of urethral closure. When the abdominal pressure increases, such as laughing, coughing, etc., it can lead to uncontrolled outflow of urine. 2. Urgency incontinence: not paying attention to the hygiene of the private parts after delivery may lead to urinary tract infections, such as acute cystitis, which can lead to frequent urination, urinary urgency and urine leakage. 3. Filling incontinence: postpartum maternal bladder contraction ability decreases, the bladder gathers a large amount of urine, the pressure exceeds the resistance of the urethral sphincter, which may lead to urinary leakage. If you have symptoms of postpartum urinary leakage, it is recommended that you seek timely medical attention, under the guidance of the doctor, improve the relevant examination, clarify the cause of the disease, and symptomatic treatment.