Daily Bowel Movements Don't Rule Out Colon Cancer, Doctor Warns
Thai doctor Dr. Jetsada Bunyawongviroj warns that regular daily bowel movements do not guarantee a healthy colon, as polyps and early-stage cancer can exist without disrupting bowel habits. He identifies five key warning signs — blood in stool, unexplained anemia and fatigue, unintentional weight loss, persistent abdominal pain with bloating, and changes in bowel patterns — and stresses that colon cancer can affect people in their 30s and 40s, urging timely medical screening rather than self-diagnosis.
Dr. Jet, or Dr. Jetsada Bunyawongviroj, Deputy Director of Maharat Nakhon Ratchasima Hospital, posted on his 'Dr. Jet' Facebook page about cases where people have normal daily bowel movements but still have colon cancer. He explains that many people tell him, 'Doctor, I go every morning like clockwork, never constipated, never diarrhea — my colon must be healthy, right?' He replies that daily bowel movements are good, but don't guarantee a problem-free colon. Some people have polyps or early-stage cancer yet still move their bowels normally every day. Critically, it can happen at ages 30–40; you don't have to wait until 50.
He lists five signs to watch for:
1. **Daily bowel movements but with blood!** Some people see bright red blood on the paper or in the toilet and assume it's hemorrhoids because there's no pain. It could be hemorrhoids, but don't self-diagnose — especially if blood is mixed with mucus or recurs repeatedly. Don't think 'no pain, no danger' because some colon cancers start with blood in the stool. Get checked to find the source.
2. **Normal bowel movements but increasing fatigue and pallor!** Some people eat well, work fine, and have normal bathroom habits, but later tire easily, get breathless climbing stairs, and look pale. Blood tests reveal iron-deficiency anemia. The link to the colon? Slow, invisible bleeding in the gut that you don't see in the stool. Over time this causes anemia. Especially in men or postmenopausal women, if iron deficiency is found, don't ignore it — find out where the blood is going.
3. **Unexplained weight loss without dieting!** Some might be happy dropping from 75 kg to 71 kg without intermittent fasting, cutting carbs, or extra exercise. But wait — if weight keeps dropping unintentionally, investigate before celebrating. Especially if accompanied by appetite loss, fatigue, or other symptoms. Unintentional weight loss can signal many diseases, including colon cancer.
4. **Still going daily but now with abdominal pain and bloating!** Some say they've never been constipated, so why the frequent stomach pain? Some days cramping, some days bloating and tightness, despite normal bowel movements. Most such cases stem from indigestion, IBS, or other non-cancer issues. But if it persists for weeks, pain increases in frequency, or comes with weight loss and anemia, get checked. Don't just keep buying over-the-counter meds until you forget how many months you've had pain.
5. **Still going daily but the pattern has changed!** Sounds confusing? Picture this: you used to finish in one bathroom trip, but lately feel like something's left behind. Minutes later you're back. Or you used to pass formed stools but now have frequent loose stools alternating with constipation for weeks. These changes have many causes and don't automatically mean cancer. But if your normal pattern shifts and doesn't revert, don't wait — see a doctor.
