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Chronic Constipation — Finding the Cause, Not Just Managing the Symptom
Most constipation is managed with generic advice — more fiber, more water. But chronic constipation that persists despite these measures has a specific underlying cause that deserves proper diagnosis. Dr. Karmina Choi identifies why you're constipated and builds a targeted treatment plan that goes far beyond laxatives.
DIGESTIVE & GI CONDITION
15%
of adults have chronic constipation — rising to 30% over age 60
Often
undertreated for years because the underlying cause is never identified
3 types
of chronic constipation — each requiring a different treatment approach
What is chronic constipation?
Constipation is defined clinically as fewer than three bowel movements per week, combined with symptoms such as straining, hard or lumpy stools, a sensation of incomplete emptying, or the need to manually assist defecation — occurring for at least three months.
But the number of bowel movements tells only part of the story. Many patients have daily bowel movements and are still constipated — because the stool is hard, passage is effortful, or the rectum never fully empties. What matters is whether your bowel function is causing you symptoms and limiting your quality of life.
Chronic constipation is not a character flaw or a failure of willpower. It is a physiological problem — and in most patients who seek specialist care, there is a specific, identifiable mechanism driving it that responds to targeted treatment.
Types of chronic constipation — the cause shapes the treatment
Slow colonic transit
The colon moves contents too slowly — stool spends excessive time in the large intestine, losing water and becoming hard and difficult to pass. Patients often have infrequent urge to defecate, bloating, and low stool frequency. The cause may be reduced colonic motility, neuropathy, or dysmotility.
Pelvic floor / outlet dysfunction
The muscles of the pelvic floor and anorectal junction don't coordinate correctly during defecation — leading to straining, incomplete emptying, and the need to manually assist. Also called dyssynergic defecation or anismus. Normal or near-normal transit time, but impaired ability to evacuate. Often missed without specialized testing.
Normal transit (functional)
Stool moves through the colon at a normal rate, but patients experience hard stools, straining, or discomfort. Often associated with IBS-C, visceral hypersensitivity, dietary factors, or psychosocial contributors. The most common subtype — and the one most responsive to dietary and lifestyle changes.
Secondary causes
Constipation driven by an underlying condition or medication — hypothyroidism, diabetes, Parkinson's disease, spinal cord injury, opioid use, calcium channel blockers, and many others. Identifying and addressing the underlying cause is the most effective treatment strategy.
Many patients have overlapping subtypes — for example, slow transit combined with outlet dysfunction. Separating these requires specialist testing, because the treatment for each is different and targeting the wrong mechanism leads to years of inadequate relief.
Symptoms — beyond just infrequent bowel movements
Infrequent bowel movements
Fewer than three per week — or a significant reduction from your personal baseline that causes discomfort or concern.
Straining and effort
Excessive pushing required to initiate or complete a bowel movement — a common contributor to hemorrhoids, fissures, and pelvic floor strain.
Sensation of incomplete emptying
The persistent feeling of not fully evacuating — often one of the most frustrating and quality-of-life-limiting symptoms.
Hard or lumpy stools
Stool that is dry, difficult to pass, or requires significant effort — a sign of prolonged transit time or inadequate hydration and fiber.
Bloating and abdominal discomfort
Fullness, pressure, cramping, or distension — often worsening through the day or with meals, and relieved (partially) by bowel movements.
Manual assistance needed
Having to support the perineum, digitally assist, or change position significantly to pass stool — a hallmark of outlet dysfunction or rectocele.
Red flag symptoms — seek prompt specialist evaluation
Constipation alongside any of the following warrants urgent evaluation to rule out structural or serious underlying causes, including colorectal cancer.
Rectal bleeding or blood in stool
Unexplained weight loss
New constipation after age 50
Narrow or pencil-thin stools
Family history of colorectal cancer
Fever or abdominal pain with constipation
How Dr. Choi evaluates chronic constipation?
Effective treatment begins with understanding why the constipation is happening. Dr. Choi uses a systematic evaluation to identify the mechanism before recommending treatment:
Detailed history. Duration, stool frequency and consistency, straining pattern, diet, medications, prior treatments, and the impact on daily life — reviewed carefully to identify clues to the underlying subtype.
Anorectal examination. A careful physical examination assesses sphincter tone, pelvic floor coordination, and structural causes — including rectocele, rectal prolapse, or paradoxical puborectalis contraction — that may be driving outlet dysfunction.
Anorectal manometry and balloon expulsion testing. These in-office tests measure rectal sensation, sphincter pressures, and the ability to expel a rectal balloon — objectively identifying dyssynergic defecation that cannot be diagnosed by history or examination alone.
Colonic transit study. When slow transit is suspected, a simple radiopaque marker or wireless motility study measures how long it takes stool to travel through the colon — distinguishing slow transit from outlet dysfunction and guiding therapy selection.
Colonoscopy when indicated. To exclude structural causes — polyps, strictures, colorectal cancer — particularly in patients over 45 or with red flag symptoms.
Treatment — targeted to your constipation type
Dietary optimization and hydration
Soluble fiber — from whole grains, fruits, legumes, and psyllium husk — adds bulk and retains water in stool, easing passage. The target is 25–35g daily, increased gradually to avoid bloating. Adequate hydration (at least 8 glasses of water daily) is equally essential — fiber without fluid worsens constipation. Dr. Choi provides specific, practical dietary guidance rather than generic advice, taking into account your current diet and any food intolerances.
Bowel habit training and toilet positioning
The gastrocolic reflex — which triggers the urge to defecate after eating — is strongest in the morning. Responding promptly to this urge, establishing a consistent morning bowel routine, and avoiding prolonged toilet sitting all support healthy defecation patterns. Footstool use during defecation (raising the knees above hip level) reduces anorectal angle and significantly reduces straining effort for many patients.
Magnesium, probiotics and herbal support
Magnesium citrate or magnesium oxide draws water into the bowel, softening stool and stimulating motility — a well-tolerated natural osmotic agent for patients who prefer to avoid pharmaceutical laxatives. Targeted probiotic strains (particularly Bifidobacterium and Lactobacillus) support gut microbiome balance and have shown benefit in functional constipation. For sluggish motility, ginger and senna-based herbal preparations may provide additional gentle stimulation. All supplements are selected based on your constipation subtype.
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Pelvic floor physical therapy and biofeedback
For patients with dyssynergic defecation or outlet dysfunction, dietary changes and laxatives are often ineffective — because the problem is muscular coordination, not stool consistency. Pelvic floor physical therapy with biofeedback retrains the pelvic floor muscles to relax appropriately during defecation. This is one of the most effective interventions available for outlet-type constipation, with success rates of 70–80% in motivated patients. Dr. Choi coordinates referrals to experienced pelvic floor therapists and monitors progress in parallel.
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Targeted laxatives and prescription secretagogues
When dietary and natural measures are insufficient, Dr. Choi selects medications matched to your constipation type. Osmotic laxatives (polyethylene glycol, lactulose) soften stool by retaining water — first-line and well-tolerated for most patients. Stimulant laxatives (bisacodyl, senna) increase colonic contractions for slower transit. For IBS-C and chronic idiopathic constipation unresponsive to standard laxatives, prescription secretagogues (linaclotide, lubiprostone) increase fluid secretion in the bowel and significantly improve stool frequency and comfort.
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Advanced evaluation and surgical consultation
A small subset of patients with severe, refractory slow transit constipation — who have failed maximal medical therapy and have objective evidence of colonic dysmotility — may be candidates for surgical consultation. Options include subtotal colectomy with ileorectal anastomosis, performed by a colorectal surgeon. Dr. Choi provides a thorough pre-surgical evaluation, ensures all non-surgical options have been genuinely exhausted, and coordinates referral when surgery becomes the appropriate next step.
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Why choose Dr. Karmina Choi?
Subtype specific diagnosis
Slow transit, outlet dysfunction, and functional constipation each require different approaches. Dr. Choi identifies which type you have before treating.
Natural-first philosophy
Diet, fiber, magnesium, and probiotics come before prescription laxatives. Medication is introduced when natural approaches are insufficient.
Pelvic floor expertise
Dyssynergic defecation is one of the most commonly missed causes of chronic constipation. Dr. Choi evaluates and coordinates biofeedback therapy for these patients.
Physiological testing when needed
Anorectal manometry and balloon expulsion testing identify outlet dysfunction that cannot be found by history or examination alone.
Convenient location
Fort Lee, NJ — easily accessible from Bergen County, Manhattan, and surrounding areas.
Female physician option
Chronic constipation disproportionately affects women. Dr. Choi provides a comfortable and understanding environment to discuss what can be an embarrassing condition.
Common Questions
How do I know if my constipation is serious enough to see a specialist?
If constipation has persisted for more than three months, has not responded to dietary changes and over-the-counter laxatives, significantly affects your quality of life, or is accompanied by any red flag symptoms — bleeding, weight loss, new onset after 50, or narrow stools — it warrants specialist evaluation. Chronic constipation is not something you simply have to manage indefinitely; effective targeted treatment is available once the underlying mechanism is identified.
I've already tried fiber and laxatives and they don't work. What next?
Fiber and osmotic laxatives work well for normal transit constipation, but they are often ineffective for outlet dysfunction or severe slow transit — because the problem is not stool consistency, it's muscular coordination or colonic dysmotility. Specialist evaluation with anorectal manometry and transit testing identifies which type you have, so treatment can be targeted to the actual mechanism. Many patients who have been "treatment resistant" for years significantly improve once the correct diagnosis is made.
What is dyssynergic defecation and how is it treated?
Dyssynergic defecation — also called anismus or pelvic floor dyssynergia — occurs when the puborectalis muscle and external anal sphincter contract instead of relax during straining. This creates an obstruction at the outlet that makes passing stool difficult or impossible despite normal colonic transit. It is diagnosed with anorectal manometry and balloon expulsion testing, and treated primarily with pelvic floor physical therapy and biofeedback — which retrains the muscles to relax appropriately. Success rates are high with consistent participation.
Is it safe to take laxatives long-term?
Osmotic laxatives such as polyethylene glycol (MiraLAX) are safe for long-term use and do not cause dependence. Stimulant laxatives such as senna or bisacodyl are appropriate for intermittent use and can be used regularly in some patients, though Dr. Choi generally prefers to identify the underlying cause and address it rather than relying on stimulant laxatives indefinitely. The goal of specialist care is to reduce laxative dependence, not increase it.
Could my constipation be related to my pelvic floor or a rectocele?
Yes — both are important and frequently overlooked causes of outlet constipation. A rectocele (a bulge of the rectal wall into the vaginal space) can trap stool and cause the sensation of incomplete emptying, difficulty passing stool, and the need to manually support the perineum. Pelvic floor dyssynergia causes paradoxical muscle contraction that obstructs evacuation. Both are identifiable on examination and with anorectal testing, and both respond well to targeted treatment — pelvic floor therapy for dyssynergia, and surgical repair for symptomatic rectocele.
Constipation that won't respond to fiber and laxatives deserves a real answer.
A specialist evaluation identifies the type of constipation you have — and opens the path to treatment that actually works for your specific situation.
1625 Anderson Avenue, Suite 203, Fort Lee, New Jersey 07024
This page is for informational purposes only and does not constitute medical advice. Individual results vary. Please consult Dr. Choi for a personalized evaluation and treatment plan.
© 2026 Colorectal Care of New Jersey. All rights reserved.
Colorectal Care of New Jersey
Expert, compassionate colorectal care — from office procedures to complex surgery — with a natural-first approach and a commitment to your long-term quality of life.
1625 Anderson Ave, Ste 203
Fort Lee, New Jersey 07024
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