Obstructed Defecation: Obstructed defecation is difficulty getting bowel movements out of the body. Although the stool reaches the rectum, or bottom of the colon, the patient has difficulty emptying. This often makes patients feel that they need to go the bathroom more often, or that they cannot empty completely, as if stool remains in their rectum. Obstructed defecation may be caused by pelvic floor prolapse (discussed below), pain symptoms or muscles not functioning normally.
Pelvic Floor Prolapse: The pelvic floor consists of the muscles and organs of the pelvis, such as the rectum, vagina, bladder. Stretching of the pelvic floor may occur with aging, collagen disorders or after childbirth. When the pelvic floor is stretched, the rectum, vagina, or bladder may protrude through the rectum or vagina, causing a bulge, which can be felt. In addition to a rectocele, patients may have rectal prolapse, a cystocele (prolapse of the bladder) or protrusion of the small bowel. Symptoms generally include difficulty in emptying during urination or defecation, incontinence or pressure in the pelvis.
Mechanistically, the causes of pelvic floor dysfunction are two-fold: widening of the pelvic floor hiatus and descent of pelvic floor below the pubococcygeal line, with specific organ prolapse graded relative to the hiatus. Associations include obesity, menopause, pregnancy and childbirth. Some women may be more likely to developing pelvic floor dysfunction because of an inherited deficiency in their collagen type. Some women may have congenitally weak connective tissue and fascia and are therefore at risk of stress urinary incontinence and pelvic organ prolapse.
Myofascial release was developed by John Barnes to evaluate and treat the myo-fascia throughout the body. The myofascial system is the connective tissue that coats our muscles, nerves, blood vessels, and bones, and runs throughout our bodies. Any tightness or dysfunction in the myofascial system can affect the aforementioned structures and result in pain and or movement dysfunction. By treating the fascia directly, therapists can improve their patient’s range of motion, reduce pain, and improve a patient’s structure and movement patterns.
Neural mobilization as the name implies, involves the restoration of neural structures back to their normal mobility: to glide and slide. Neural structures that cannot move properly can cause pain that can radiate down an extremity or into the trunk and can give the sensation of burning, zinging, and stabbing. Some orthopedic therapists practice this type of mobilization; common examples include the sciatic nerve in the leg and the ulnar nerve in the arm. Pelvic floor PTs focus on these nerves when they cause issues, but they also pay attention to nerves that innervate the perineum and genital region (bicycle seat area), such as the pudendal, iliohypogastric, obturator, ilioinguinal, genitofemoral and the femoral cutaneous nerves. By allowing these nerves to move freely, symptoms such as vulvovaginal, penile, rectal, clitoral and testicular pain, itching and burning can be greatly improved.
Home exercise programs are essential for each patient. In the case of weakness, a patient will require more pelvic floor, core and functional strengthening and stability exercises. For overactive and pain conditions, the HEP typically consists of relaxation techniques, self-massages (both external and internal), gentle stretching, cardiovascular fitness as tolerated, and eventually pain-free core stability exercises. Both require postural and behavioral modifications and self-care strategies. For more information and detail, check out the book: Heal Pelvic Pain, by Amy Stein or her DVD: Healing Pelvic and Abdominal Pain here.
As many as 50 percent of people with chronic constipation have pelvic floor dysfunction (PFD) — impaired relaxation and coordination of pelvic floor and abdominal muscles during evacuation. Straining, hard or thin stools, and a feeling of incomplete elimination are common signs and symptoms. But because slow transit constipation and functional constipation can overlap with PFD, some patients may also present with other signs and symptoms, such as a long time between bowel movements and abdominal pain.