Athena Vale
Constipation is a common problem that can be caused by a variety of factors, including diet, poor toileting habits, and underlying medical conditions. One factor that is often overlooked is the role of pelvic floor muscles in maintaining regular bowel movements. Pelvic floor dysfunction, a condition where the pelvic floor muscles are weak or unable to coordinate properly, is estimated to affect up to half of individuals with long-term constipation. This condition can lead to difficulties in passing stool and can be caused by various factors such as traumatic injuries, pregnancy, aging, and prior pelvic surgeries. Understanding the link between weak pelvic muscles and constipation is crucial for seeking appropriate treatments, which may include lifestyle changes, exercises, and in some cases, medical interventions.
| Characteristics | Values |
|---|---|
| What is pelvic floor dysfunction? | A common condition that can make bathroom visits unpleasant. |
| What causes it? | Traumatic injuries to the pelvic area, overuse of pelvic muscles, prior pelvic surgery, pregnancy and childbirth, aging, stress and anxiety, and connective tissue disorders. |
| What are its symptoms? | Constipation, leaking stool and urine, painful urination, unexplained low back pain, ongoing pain in the pelvic region, genitals, or rectum. |
| How is it diagnosed? | Through a physical exam to test pelvic floor muscle control, rectal and pelvic exams, anorectal manometry, defocography test, digital rectal exam (DRE), sigmoidoscopy, anorectal manometry test. |
| How is it treated? | Biofeedback therapy, lifestyle changes such as a high-fiber, whole-foods diet and regular exercise, and in some cases, surgery. |
| How is it related to constipation? | Weak pelvic muscles can cause constipation by impairing the ability to adequately squeeze and maintain the sharp angle between the rectum and anus needed for passing stool. |
| What are the types of pelvic floor dysfunction? | Pelvic organ prolapse (POP), rectocele, levator syndrome, anismus or dyssynergic defecation, pelvic floor dyssynergia. |
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What You'll Learn
Pelvic floor dysfunction
PFD can cause a range of symptoms, including pelvic pain, pressure, pain during sex, urinary incontinence, overactive bladder, bowel incontinence, incomplete emptying of feces, constipation, myofascial pelvic pain, and pelvic organ prolapse. When pelvic organ prolapse occurs, there may be a visible protrusion of organs or a lump felt in the vagina or anus. It can also cause leaking stool and urine, painful urination, and unexplained low back pain.
PFD can be treated through surgery, medication, physical therapy, and lifestyle modifications. Physical therapy may involve pelvic floor exercises (Kegel exercises) to strengthen the pelvic floor muscles and improve muscle tone. These exercises can be done lying down, sitting, or standing, and can help prevent the need for corrective surgery. It is important to tailor the treatment to the specific needs of the patient and a multidisciplinary approach is often necessary.
Constipation is a common symptom of PFD, and it can be difficult to distinguish between the two conditions. Constipation and straining can also lead to PFD. Anismus, or dyssynergic defecation, is a type of PFD that makes it hard to defecate. It occurs when the muscles and nerves in the pelvic floor fail to coordinate correctly, causing chronic constipation. Biofeedback therapy is the most effective treatment for anismus.
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Anismus (dyssynergic defecation)
Anismus, also known as dyssynergic defecation, is a functional defecation disorder. It is a type of pelvic floor dysfunction that makes it difficult to defecate. It is characterised by the failure of the muscles and nerves in the pelvic floor to coordinate properly during bowel movements. This can lead to chronic constipation, which is defined as having fewer than three bowel movements per week.
Anismus can manifest in several ways. The most common form is hypertonic pelvic floor, where the muscles that usually hold in stool fail to relax during defecation attempts. In some cases, these muscles may even tighten instead, a condition known as paradoxical contraction. Some individuals with anismus are unable to coordinate their muscles to generate sufficient force to expel stool effectively. Additionally, about half of those with this condition experience an impaired ability to sense the presence of stool or the urge to defecate.
Dyssynergic defecation is estimated to account for 15% to 25% of all chronic constipation cases. It is approximately twice as prevalent in women compared to men and becomes more common after the age of 65. Interestingly, about one-third of individuals with dyssynergic defecation develop it during childhood, while another third develop it following specific events such as childbirth or injury.
Before diagnosing dyssynergic defecation, healthcare providers will typically rule out other common structural and metabolic causes of constipation. This may involve performing various rectal exams, including digital rectal exams (DRE) and sigmoidoscopies. If these initial tests do not reveal any obvious causes, more specific tests may be conducted, such as anorectal manometry and defocography tests, to assess the functioning of the pelvic floor muscles and identify any structural abnormalities.
Biofeedback therapy is currently the most effective treatment for anismus. While laxatives and pharmaceuticals for constipation may be suggested, these medications have not been specifically studied for dyssynergic defecation. However, they can help prevent stool impaction, even if they do not address the underlying muscle coordination issues. Experimental use of botulinum toxin injections has shown mixed results, with a success rate of approximately 50%.
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Levator syndrome
Levator ani syndrome, also known as pelvic floor myalgia, pelvic floor myofascial pain, or pelvic floor muscle spasm, is a type of pelvic floor dysfunction that causes unexpected, sporadic, or ongoing pain in the rectum or vagina. This pain can be a dull ache or a sharp pain and may be brief or last for several hours or days. It is often higher in the rectum and may be worse on one side, typically the left. The pain may also spread to other areas, such as the buttocks, upper thighs, low back, groin, or pelvis.
The exact cause of levator ani syndrome is unknown, but it is believed to be related to spasms or tightening of the levator ani muscle, a pelvic floor muscle near the anus and vagina. This muscle is responsible for supporting organs in the pelvis, including the rectum, bladder, and, in women, the uterus and vagina. It also controls defecation.
The syndrome can cause pain during certain activities, such as intercourse in women and ejaculation in men. It may also be associated with constipation, difficulty passing bowel movements, and a feeling of incomplete evacuation.
There is no single test for diagnosing levator ani syndrome, but a healthcare provider may perform a physical examination, including a digital rectal examination (DRE), pelvic examination, and rectal exam. They may also take a medical history and ask about symptoms, prior pregnancies, and sexual pain.
Treatment options for levator ani syndrome include physical therapy, biofeedback therapy, electrogalvanic stimulation, muscle relaxers, pain medication, and trigger point injections. Biofeedback therapy involves learning to control and relax the pelvic floor muscles, while electrogalvanic stimulation uses mild electric currents to relax the rectal muscles. Home treatments, such as sitz baths, may also be recommended. With proper diagnosis and treatment, individuals with levator ani syndrome can find relief from their symptoms.
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Pelvic floor prolapse
Pelvic floor dysfunction is a common condition that can cause constipation, and constipation can also lead to pelvic floor dysfunction. Pelvic organ prolapse (POP) is a type of pelvic floor dysfunction that occurs when the muscles holding the pelvic organs (uterus, bladder, and rectum) in place become too weak or stretched out. This can cause the organs to stick out or bulge into the vagina, and symptoms include leaking urine or stool and a feeling of heaviness or pressure in the lower abdomen or vagina.
POP is often caused by changes during pregnancy and childbirth that weaken the pelvic floor, but it can also occur in women who have never given birth. It is more common as women get older, particularly after menopause, and it affects 1 in 4 women in their 40s and 1 in 3 women in their 60s. By the time women reach their 80s, POP affects half of all women. Other factors that can lead to POP include ongoing constipation and straining during bowel movements, a persistent cough caused by smoking or lung disease, and traumatic injuries to the pelvic area.
If you are experiencing symptoms of POP, it is important to see a healthcare provider for a diagnosis. They may perform a physical exam to test your pelvic floor muscle strength and perform rectal and pelvic exams. There are treatment options available for POP, including hormone therapy, vaginal support pessaries, physiotherapy, and pelvic floor muscle training. Surgery may be considered if the prolapse is severe or significantly affecting your quality of life.
It is important to note that POP is a common condition that can be treated, and you should not feel ashamed or embarrassed to seek help. Many women experience POP, and there are healthcare professionals who specialize in pelvic floor disorders who can provide support and guidance.
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Poor muscle control
The pelvic floor muscles support key gastrointestinal, reproductive, and eliminatory organs. When these muscles weaken, the lack of support can negatively impact the function of these organs. Pelvic floor dysfunction can be caused by various factors, including traumatic injuries, overuse of pelvic muscles, prior pelvic surgery, pregnancy, childbirth, aging, stress, and anxiety. It is estimated that up to half of individuals with long-term constipation also experience pelvic floor dysfunction.
Anismus can manifest in different ways. In some cases, the muscles that hold in stool may fail to relax during bowel movements, a condition called hypertonic pelvic floor. Paradoxical contraction can also occur, where the muscles tighten instead of relaxing. Additionally, some individuals may struggle to coordinate their muscles effectively to generate sufficient force for defecation. Impaired rectal sensation or a reduced urge to defecate can also contribute to anismus.
To diagnose dyssynergic defecation, healthcare providers will typically perform a physical examination and take a detailed medical history. Specific tests, such as anorectal manometry, defocography, digital rectal exam (DRE), and sigmoidoscopy, may be conducted to assess muscle function and identify any structural abnormalities. Treatment options for pelvic floor dysfunction include biofeedback therapy, lifestyle changes, and, in some cases, surgery.
It is important to note that constipation can be caused by various factors, and a comprehensive evaluation by a healthcare professional is necessary to determine the underlying cause and recommend appropriate treatment options.
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Frequently asked questions
Yes, weak pelvic muscles can cause constipation. Weak pelvic muscles can prevent patients from adequately squeezing or maintaining the sharp angle between the rectum and anus needed to streamline passing stool. This can lead to chronic constipation.
Symptoms of pelvic floor dysfunction include constipation, leaking stool (fecal incontinence), leaking urine (urinary incontinence), painful urination, unexplained low back pain, and ongoing pain in the pelvic region, genitals, or rectum.
Anismus, or dyssynergic defecation, is a functional pooping disorder that occurs when the muscles and nerves in the pelvic floor fail to coordinate correctly to have a bowel movement. It can cause or be caused by chronic constipation.
Treatment options for pelvic floor dysfunction include biofeedback therapy, lifestyle changes such as a high-fiber diet and regular exercise, and in some cases, surgery.
Weak pelvic muscles can be caused by traumatic injuries to the pelvic area, overuse of pelvic muscles, prior pelvic surgery, pregnancy and childbirth, aging, stress, and anxiety.
