When is constipation a concern?
Constipation becomes a concern, and worth a visit with Dr. Khan, when it lasts more than three weeks despite diet and lifestyle changes, keeps coming back, needs laxatives regularly, or represents a new change in your usual bowel habits. It also needs prompt attention when it comes with blood in the stool, black stools, unexplained weight loss, anemia, severe pain, vomiting, a swollen belly, or not passing gas.
When to act on constipation
- Self-careShort-lived constipation that improves within days with fluids, fiber and activity.
- See a doctorLasting more than three weeks, recurring or needing regular laxatives.
- Urgent careBleeding, severe pain, vomiting, swollen belly or no gas.
What are the warning signs with constipation?
The warning signs Dr. Khan watches for with constipation include rectal bleeding or blood in the stool, black stools, unexplained weight loss, iron-deficiency anemia, persistent abdominal pain, stools that become consistently thinner, a new change in bowel habits after age 45, and a family history of colorectal cancer or inflammatory bowel disease. Severe pain with vomiting, a swollen belly and no gas can signal a blockage and needs emergency care.
Warning signs
- Blood in or on the stool, or black stools
- Unexplained weight loss or anemia
- New bowel changes after age 45
- Family history of colon cancer or IBD
- Severe pain, vomiting, swollen belly or no gas (emergency)
Have symptoms like these?
Dr. Muhammad Ali Khan, a board-certified gastroenterologist and hepatologist, sees adults at our Katy and Cypress offices, serving patients across Greater Houston.
How long can you safely go without a bowel movement?
Normal bowel habits range from three times a day to three times a week. Going more than three days without a bowel movement is common with constipation, but if you go a week or more, feel very uncomfortable, or have pain, bloating, vomiting or cannot pass gas, contact a doctor. Fecal impaction, a hard mass of stool stuck in the rectum, can develop with prolonged constipation, especially in older adults.
| Situation | Next step |
|---|---|
| A few days, improving with self-care | Continue fluids, fiber and activity |
| More than three weeks or recurring | Primary care or gastroenterologist |
| Needing laxatives regularly | Gastroenterologist |
| Bleeding, anemia or weight loss | Gastroenterologist promptly; colonoscopy likely |
| Severe pain, vomiting, no gas | Emergency room |
What happens at a GI visit for constipation?
At a GI visit for constipation, the gastroenterologist asks about your bowel habits, stool form, straining, diet, fluids, activity and medicines, and performs an exam that may include a rectal exam. Depending on your history, next steps can include blood tests, a colonoscopy for warning signs or if screening is due, and anorectal manometry if straining or incomplete emptying suggests a pelvic floor problem.
- Bring a two-week bowel diary with stool form and straining
- List every medicine and supplement
- Note any laxatives you have tried and how they worked
- Share your family history of colon cancer or polyps
Tip: Bring your laxative history
Write down every laxative or supplement you have tried, the dose and how it worked. It saves time and helps your doctor choose the next step.
Is constipation a sign of colon cancer?
Most constipation is not caused by cancer. However, a new, persistent change in bowel habits, especially after age 45 or with bleeding, weight loss, anemia or thinner stools, can be a symptom of colorectal cancer and should be evaluated with a colonoscopy. Adults at average risk should begin colorectal cancer screening at age 45 whether or not they have symptoms.
Learn about colonoscopy in Katy and Cypress and treatment for chronic constipation.
Get answers instead of guessing
Request a visit with Dr. Muhammad Ali Khan at our Katy and Cypress offices. Call the office to check your insurance coverage; self-pay options are available.
Key takeaways
- Constipation is a concern when it lasts more than three weeks, recurs or needs regular laxatives.
- Bleeding, weight loss, anemia or new changes after 45 need prompt evaluation.
- Severe pain, vomiting, a swollen belly and no gas can signal a blockage.
- A GI visit reviews habits and medicines and may include colonoscopy or anorectal manometry.
- Most constipation is not cancer, but persistent changes should be checked.
Frequently asked questions
Should I see a gastroenterologist for constipation?
Yes, if it lasts more than three weeks, keeps returning, needs regular laxatives or comes with warning signs.
Is it bad to go a week without a bowel movement?
It can lead to discomfort and impaction. Contact a doctor, especially with pain, bloating or vomiting.
Can constipation cause back pain?
Constipation can cause lower back discomfort from pressure. Severe or persistent back pain should be evaluated.
Can medicines cause constipation?
Yes. Opioids, iron, calcium, some antidepressants, antacids and blood pressure medicines commonly cause constipation. Ask your doctor about alternatives.
Do I need a referral to see a gastroenterologist in Katy or Cypress?
It depends on your insurance plan. Many PPO plans let you book a specialist directly, while some HMO plans require a referral from your primary care doctor. Call (346) 340-4414 and the team can help you check.
Sources
- NIDDK — Constipation
- MedlinePlus — Constipation
- American College of Gastroenterology — Constipation
- USPSTF — Colorectal cancer screening
Where to be seen in Katy and Cypress
United Gastroenterology Associates has two offices: Katy, at 23920 Katy Freeway, Suite 555, next to Memorial Hermann Katy Hospital, and Cypress, at 21216 Northwest Freeway, Suite 640, on US-290. Both are open Monday through Friday, 8:30 AM to 5:00 PM, closed for lunch from 12:00 to 1:30 PM, and serve patients from Fulshear, Richmond and across Greater Houston. Call (346) 340-4414 for either office.
Katy office
23920 Katy Freeway, Suite 555
Katy, TX 77494
Memorial Hermann Medical Plaza 1
Next steps
If you are dealing with when is constipation a concern or any ongoing digestive concern, a focused evaluation can find the cause and start the right treatment. Dr. Muhammad Ali Khan and the team at United Gastroenterology Associates see adults from Katy, Cypress, Fulshear, Richmond, Greater Houston and across Texas. Call (346) 340-4414 or request an appointment today.
If you have severe pain, vomit blood, pass black stools or have chest pain, call 911 or go to the nearest emergency room.
