Medical Oncologist
CION Cancer Clinics
Colon cancer in your twenties and thirties: the symptoms to take seriously | CION Cancer Clinics
Colon cancer is uncommon in your twenties and thirties, but it does happen, and the symptoms are the same as in older adults. Bleeding, a lasting change in bowel habit, tiredness from a low haemoglobin and belly pain are the main ones. At your age most of these come from piles, infections or irritable bowel. This page explains which patterns deserve a colonoscopy, who is at higher risk, and how to get checked without waiting. At CION Cancer Clinics in Hyderabad, our oncologists explain colon cancer in plain words and plan care around you and your family.
NG
Medically reviewed by Dr. Naresh GunduConsultant Medical Oncologist · MBBS, DNB (Internal Medicine), DM (Medical Oncology, AIIMS) · last reviewed October 2026, next review due October 2027
17+specialists on panel
15,000+patients treated
35+centres across Telangana & AP
4.8★ / 800+Google rating
On this page
- Can you get colon cancer in your twenties or thirties?
- Which bowel symptoms in your 30s should you not ignore?
- What will the doctor do if you are young with these symptoms?
- Which young people are more likely to get colon cancer?
- What this page cannot tell you
- Common questions about colon cancer in your 20s and 30s
The short answer
Can you get colon cancer in your twenties or thirties?
Yes, though it is uncommon. Most colon cancer is still found in people over fifty. In several countries, though, cases in younger adults have been rising for some years, and doctors do not yet fully know why. Indian data on young patients is thinner, so nobody can give you a reliable local figure. What is clear is that age alone should never close the question.
The symptoms are the same at any age
A young person's colon cancer does not announce itself differently. The signs are blood in or on the stool, a change in bowel habit that lasts, tiredness from a low haemoglobin, belly pain or bloating that keeps returning, and weight loss you cannot explain. What differs is how those signs get read. At thirty-two, bleeding is usually blamed on piles, and usually that is correct.
Why a symptom that lasts matters more than any single one
One episode of bleeding after a hard stool is very common and rarely serious. Bleeding that keeps coming back, or a bowel habit that has changed and stayed changed for several weeks, is different. It needs a doctor to look, whatever your age. The useful question is not whether you are too young. It is whether this has gone on long enough that someone should check. Our page on symptoms in young adults goes through each sign in more detail.
Most bowel symptoms in young adults are not cancer. A symptom that will not settle still deserves a proper check.Symptoms to notice
Which bowel symptoms in your 30s should you not ignore?
Each of these has a common, harmless explanation at your age. The pattern that matters is a symptom that does not settle.
Bleeding from the bottom
Bright red blood on the paper is most often piles or a small tear called a fissure. Blood mixed into the stool, dark red blood, or bleeding that returns after treatment for piles needs a closer look. Our page on whether bleeding is always piles explains the difference.
A change in bowel habit that lasts
Looser stools, more frequent trips or new constipation often follow an infection, a new diet or a stressful month, and they usually settle. A change that has lasted several weeks with no clear reason is worth reporting, especially if it is new for you.
Tiredness and anaemia
Anaemia means a low haemoglobin. In young women it is usually from heavy periods or diet. In a young man, or in anyone whose iron does not come back up with tablets, a slow hidden bleed from the bowel has to be ruled out.
Belly pain, bloating or weight loss
Irritable bowel syndrome is far more common at this age and can cause cramps and bloating for years. Pain that is steadily getting worse, a lump you can feel, or weight loss you were not trying for should be checked.
None of these tells you on its own whether you have cancer. Only an examination and, where needed, a colonoscopy can.Not sure whether this applies to you?
Ask an oncologist
!
When to see a doctor this week, and when to go today
See a doctor this week if bleeding keeps returning, if your bowel habit has changed for several weeks, or if a blood test shows anaemia nobody has explained. Go to an emergency department today if you are passing a lot of blood or feel faint, if you cannot pass stool or wind and your belly is swollen and painful, or if you are vomiting and cannot keep fluids down.
Getting checked
What will the doctor do if you are young with these symptoms?
A careful history
Expect questions about how long the symptom has lasted, what your stools look like, your weight, and who in the family has had bowel, womb or other cancers, and at what age. Write this down before you go, because it is easy to forget under pressure.
An examination
The doctor will feel your abdomen and usually do a gentle finger examination of the back passage. It takes a minute. Embarrassment is the most common reason young people put this off, and doctors do it every day.
Blood tests
A blood count shows whether you are anaemic, and iron studies show whether it is the kind of anaemia that comes from slow blood loss. A normal result is reassuring, but it does not rule out a cause in the bowel on its own.
A colonoscopy if the pattern fits
A colonoscopy is a camera test that looks at the whole lining of the colon and lets a small tissue sample, called a biopsy, be taken. CION arranges it at an accredited partner centre, and the result comes back to your CION doctor. The colonoscopy and biopsy guide explains the day itself.
Leave a number, we will call you
One field. No form to fill in, and no charge for the call.
Who is at higher risk
Which young people are more likely to get colon cancer?
- A close relative diagnosed young
- A parent, brother or sister with bowel cancer, especially before fifty, raises your risk and may mean screening should start early for you.
- Lynch syndrome
- An inherited fault in the genes that repair damaged DNA. It raises the risk of bowel, womb and some other cancers, often at a young age.
- Polyposis syndromes
- Inherited conditions such as FAP, where the colon grows many polyps, small growths on the lining, starting in the teens or twenties.
- Long-standing colitis
- Ulcerative colitis or Crohn's disease affecting the colon for many years raises the risk and calls for regular colonoscopy checks.
- No risk factor at all
- Most young people diagnosed have no family history and no known condition. A clean family history is not a reason to ignore a symptom.
Being straight with you
What this page cannot tell you
It cannot tell you whether your symptoms are cancer. Nobody can, from a description. That needs a doctor who has examined you, read your blood results and, where the pattern fits, arranged a colonoscopy. It also cannot tell you why colon cancer is becoming more common in younger adults. Researchers are looking at diet, weight, gut bacteria and antibiotics, and none has been proven as the cause. Our page on why cases are rising in under-50s covers what is known.
Who this page does not apply to
If you are over fifty, the screening advice for your age group applies, and a lasting symptom needs a check even sooner. If your symptoms come from the last part of the bowel, close to the anus, the problem may be rectal or anal, which are treated differently. The rectal cancer pages cover that. If you already know you carry Lynch syndrome or a polyposis gene, your check-up plan comes from your genetics team.
If you have already been diagnosed
Being young changes some decisions. Your tumour will be tested for MMR, a marker that can point to an inherited cause, and you may be offered genetic testing. If you hope to have children, ask about fertility before chemotherapy starts. Treatment itself is planned by CION's tumour board on the stage of the cancer, not on your age.
Not sure whether your symptom has gone on long enough? Call the helpline and describe it. Someone will tell you honestly whether it needs a doctor this week.Questions we are asked
Common questions about colon cancer in your 20s and 30s
Is colon cancer common in your 30s?
No. It is uncommon, and most bowel symptoms at this age have a harmless cause. But it does happen, and cases in younger adults have been rising in several countries. That is why a symptom that keeps coming back deserves a check, whatever your age.
What is usually the first symptom in young people?
There is no single first symptom. Bleeding from the bottom and a change in bowel habit are reported most often, followed by belly pain and tiredness from anaemia. Young people often live with symptoms for a long time before they are checked, mainly because everyone assumes they are too young.
My doctor said it is just piles. Should I go back?
Piles are the likeliest cause of bright red bleeding at your age. If the bleeding continues after treatment for piles, or comes with a change in bowel habit, anaemia or weight loss, it is reasonable to go back and ask whether a colonoscopy is needed. Asking is not being difficult.
Can I do a stool test instead of a colonoscopy?
A stool test such as a FIT is a screening tool for people without symptoms. It does not diagnose cancer, and a positive result leads to a colonoscopy. If you already have symptoms, a negative stool test does not rule cancer out, so your doctor may still advise a colonoscopy.
Is a colonoscopy safe at a young age?
Yes. It is the same test at any age and is done routinely in young people for colitis and other bowel problems. Most people are given sedation and remember little of it. The harder part is the bowel preparation the day before, which empties the colon so the lining can be seen.
Does a vegetarian diet protect me?
A diet rich in fibre, dal, vegetables and millets is good for your bowel, and processed meat raises risk. But vegetarians do get colon cancer, and a healthy diet is not a reason to ignore a symptom. Diet shifts risk across a population. It cannot speak for your own bowel.
My parent had colon cancer. Should I start screening early?
Possibly. If a parent, brother or sister was diagnosed, especially young, screening often starts earlier than the usual age, and a genetic referral may be offered. The right starting point depends on who was affected and when, so take those details to a doctor.
Where do I start if I am worried?
Start with your family doctor or a gastroenterologist, and take a written list of your symptoms, how long they have lasted and your family history. For a specialist view, call the CION helpline. A CION doctor can see you and arrange a colonoscopy at a partner centre if it is needed.
Your Specialists
Meet CION's colon cancer specialists. Bring your colonoscopy, scan or biopsy report.
Our surgical and medical oncologists plan colon cancer care together: which operation, whether chemotherapy is needed, and the follow-up that comes after.
Medical Oncologist
Dr. C. Raghavendra Reddy
MBBS(Gold Medal), DNB(General Medicine), DM(Medical Oncology)(Gold Medal)
Medical Oncologist
Dr. Bharati Devi Gorantla
MBBS, MD(General Medicine), DM(Medical Oncology)(Adyar,Chennai), ECMO, MRCP SCE(UK)
Medical Oncologist
Dr. Owais Mohammed
MBBS, MD (General Medicine), DrNB (Medical Oncology), ECMO, MRCP SCE (Medical Oncology) (UK)
Medical Oncologist
Medical Oncologist
Surgical Oncologist
Dr. Muralidhar Muddusetty
MBBS (AIIMS), MS (Surgery) (AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh)
Surgical Oncologist
Want a specific doctor for your case? Mention them when booking.
Book Free ConsultationBook an appointment with our specialist
Share your name and number — we'll call you back within 30 minutes to schedule your consultation.
Sources
- American Cancer Society — Colorectal Cancer Signs and Symptoms
- American Cancer Society — Colorectal Cancer Risk Factors
- American Cancer Society — Colorectal Cancer Statistics
- NHS — Symptoms of bowel cancer
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
Keep reading
Related pages
Symptoms in Young Adults and Why They Get MissedEach warning sign, and why it gets put down to something elseWhy Young Patients Are Diagnosed LaterWhere the delays happen, and how to avoid themGetting Taken Seriously With Bowel Symptoms When YoungWhat to say when you are told you are too youngShould Young Patients Have Genetic Testing?Why an inherited cause is checked more often at a young age
Talk to us
Worried about a bowel symptom that will not settle?
Tell us what you have noticed and for how long. A CION doctor will tell you honestly whether it needs a colonoscopy, and arrange one through a partner centre if it does. One helpline serves every CION centre.