Overview
Pelvic floor dysfunction (PFD) occurs when the muscles of the pelvic floor — which support the bladder, bowel, and uterus or prostate — fail to coordinate properly during defecation. The most common GI form is dyssynergic defecation (anismus), where the pelvic floor muscles paradoxically contract instead of relaxing during straining, making it difficult or impossible to pass stool. PFD is frequently misdiagnosed as simple constipation and often coexists with irritable bowel syndrome. Biofeedback therapy achieves remission in 70–80% of patients.
Symptoms
Difficulty passing stool despite a strong urge to defecate
Sensation of incomplete evacuation after a bowel movement
Excessive straining for prolonged periods
Feeling of a blockage or plug in the anorectal area
Need to use fingers to assist in completing defecation
Common Causes
Learned paradoxical muscle contraction — the pelvic floor fails to relax on straining
Childbirth trauma or previous anorectal surgery
Chronic straining from long-standing constipation
Anxiety, stress, or psychological trauma affecting muscle co-ordination
Neurological conditions affecting sacral nerve control
Self-Care Tips
Pelvic floor physiotherapy with biofeedback is the most effective treatment — commit to the full course (6–8 sessions)
Use a footstool (7–9 inches) to raise your feet during defecation, mimicking a squatting position
Never ignore or suppress the urge to defecate; respond promptly
Avoid prolonged sitting on the toilet or reading/using your phone while on the toilet
Increase dietary fibre gradually to 25–30g per day and drink at least 8 glasses of water daily
Manage stress through regular exercise, mindfulness, or counselling, as psychological tension directly worsens pelvic floor muscle tone
When to See a Doctor
See a gastroenterologist if you have chronic constipation that does not respond to dietary changes and laxatives, especially if you have a sensation of blockage during defecation or need to manually assist stool passage. Anorectal manometry and balloon expulsion testing confirm the diagnosis and guide biofeedback therapy.
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