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Constipation

Constipation, fewer than three weekly bowel movements, can cause discomfort, bloating, and pain. In Houstons warm climate, dehydration worsens symptoms. Board certified gastroenterologist Dr. Rishi Chadha at GastroDoxs offers personalized diagnoses and comprehensive treatments, from diet adjustments to advanced therapies, for lasting relief.

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Texas Medical Board
Harris County Medical Society
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American Society for Gastrointestinal Endoscopy
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Houston Methodist leading Medicine
HCA Houston Healthcare
Rishi Chadha

About the Expert

Dr. Rishi Chadha, MD is a board‑certified gastroenterologist who specializes in preventive gastroenterology, colorectal cancer screening, and minimally invasive endoscopic procedures. He completed his fellowship at Sunrise Health GME in Las Vegas and previously trained in internal medicine at St. Vincent’s Medical Center in Connecticut.

What Is Constipation?

Constipation means you have fewer than three bowel movements per week. Stools are often hard, dry, or painful to pass, and you may feel bloated or like you still need to go. In Houston's warm weather, dehydration can make symptoms worse.

Common Causes and Risk Factors

  • Low dietary fiber intake
  • Inadequate fluid consumption
  • Lack of regular physical activity
  • Certain medications (e.g., painkillers, antidepressants)
  • Ignoring the natural urge to have a bowel movement
  • Hormonal changes during pregnancy
  • Age over 65 years
  • Underlying health issues (diabetes, hypothyroidism)

Signs and Symptoms

  • Fewer than three bowel movements per week
  • Straining or pain while passing stool
  • Hard, dry, or lumpy stools
  • Sensation of incomplete emptying
  • Abdominal bloating or discomfort
  • Lower back pain from excessive straining
  • Nausea in severe or obstructive cases

How Dr. Rishi Diagnoses Constipation?

Dr. Rishi uses a step-by-step approach:

Medical History and Physical Exam

He reviews your diet, fluid intake, exercise habits, medications, and overall health history to identify potential triggers.

Blood Tests

We check thyroid function, electrolytes, and other lab values to rule out metabolic or hormonal causes of slow transit.

Imaging Studies

  • Abdominal X-ray or CT scan to detect obstructions, stool burden, or structural abnormalities.

Endoscopic Evaluation

For patients over 50 or those with bleeding, a colonoscopy examines the colon lining for polyps, strictures, or other pathology.

Motility Testing

If constipation is persistent, specialized tests (anorectal manometry, balloon expulsion, or whole-gut transit studies) assess nerve and muscle function.

Rishi Chadha
Treatment

Our Houston team offers a full range of care for constipation.

1. Lifestyle and Diet Changes

  • Add more fiber rich foods whole grains, beans, greens
  • Drink 8 plus glasses of water daily, especially in Houston heat
  • Exercise regularly, even light walking helps
  • Establish a daily bathroom routine, go at the same time each day

2. Medications

  • Fiber supplements e.g. psyllium/Metamucil
  • Stool softeners e.g. docusate
  • Osmotic laxatives e.g. Miralax - typical adult dose 17 g daily
  • Prescription medications for chronic or severe cases

3. Minimally Invasive and Advanced Procedures

  • Biofeedback therapy for pelvic floor dysfunction
  • Sacral nerve stimulation for slow transit constipation
  • Botox injections to relax tight anal muscles
  • Endoscopic stool removal for impacted stool
Rishi Chadha

About the Author

Dr. Rishi Chadha, MD is a board‑certified gastroenterologist who specializes in preventive gastroenterology, colorectal cancer screening, and minimally invasive endoscopic procedures. He completed his fellowship at Sunrise Health GME in Las Vegas and previously trained in internal medicine at St. Vincent’s Medical Center in Connecticut.

Frequently Asked Questions

What's a normal bowel movement frequency?

Anywhere from three times a day to three times a week is considered normal.

What foods should I avoid to prevent constipation?

Limit cheese, white bread, and large amounts of red meat, which can slow digestion.

Can constipation cause back pain?

Yes. Straining during bowel movements can lead to lower back discomfort or soreness.

Do bananas cause constipation?

Ripe bananas are high in fiber and usually help digestion. Unripe (green) bananas may slow bowel movements.

How much Miralax is safe for adults?

The typical adult dose is 17 grams (about one heaping tablespoon) once daily. Always follow your doctor's instructions.

Can constipation make me feel nauseous?

Yes. Severe or prolonged constipation can lead to nausea, bloating, or even vomiting in extreme cases.

When should I see a doctor about constipation?

See a provider if constipation lasts more than three weeks, or if you experience severe pain, unexplained weight loss, bleeding, or vomiting.

Are laxatives safe for long-term use?

Bulk-forming laxatives (e.g., psyllium) are safe for regular use. Avoid daily stimulant laxatives unless specifically directed by your physician.

Can stress cause constipation?

Yes. Stress and anxiety can alter gut motility and contribute to constipation.

How does not drinking enough water affect stool?

Insufficient fluids cause the colon to absorb more water from stool, making it hard, dry, and difficult to pass.

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