Urinary incontinence is relatively common in the elderly. After excluding organic causes of urinary incontinence through examination, we should consider functional causes. This is mainly due to the relaxation of the urethral sphincter, pelvic floor, and the muscles around the urethra, which decreases the urethral pressure. When the abdominal pressure increases, it can cause urinary incontinence. We can improve the muscles of the pelvic floor gradually by undergoing pelvic floor rehabilitation therapy, which increases their strength and improves urinary incontinence. The key to pelvic floor rehabilitation is to provide patients with guidance and exercises for lifting the anus. By persisting in these exercises, the symptoms of urinary incontinence can be alleviated or eliminated.