Pelvic floor ultrasonography has a wide range of indications, such as recurrent urinary tract infections, urinary urgency, urinary frequency, nocturia and incontinence, senseless urine loss, bladder-related pain, persistent dysuria, dysfunction of urination, waiting for urination, distortion of urinary stream, intermittent urination, slow urinary stream, involuntary urine flow from the urethral orifice when there is an increase in abdominal pressure, such as during sneezing, coughing, breath-holding, and exercising, prolapse of bladder, uterus, rectum and perineal bulge or drop, symptoms of bowel obstruction, such as straining to defecate, chronic constipation, sensation of incomplete bowel movement, and fecal incontinence. Pelvic floor ultrasound is more commonly used for early screening of pelvic floor dysfunction on the 42nd day postpartum, assessment of birth trauma to the anorectal and anal sphincter muscles, and assessment of the efficacy of pelvic floor repair before and after surgery and pelvic floor rehabilitation. Pelvic floor ultrasound can be performed on anyone suspected of having pelvic floor dysfunction, and it is recommended that women in labor on the 42nd day postpartum and perimenopausal women should undergo pelvic floor ultrasound screening.