She Was Told It Was “Just Postpartum” — How a 30-Something Mom Fought for a Stage 3 Colorectal Cancer Diagnosis
A mom in her 30s spent six years being told her rectal bleeding and bowel changes were just postpartum side effects before finally learning the truth: she had stage 3 colorectal cancer. Her experience, recently shared by Business Insider, is heartbreaking — and unfortunately, it’s not rare. Colorectal cancer in younger adults is rising, and symptoms are often brushed off as “piles,” IBS, or stress, especially in women after childbirth.
In this guide, we’ll walk through what happened to this mom, why colorectal cancer is showing up in younger people, which symptoms deserve attention, and how you can advocate for yourself without feeling like you’re “overreacting.” The goal isn’t to scare you, but to empower you with clear, evidence-based information and practical next steps.
The Story: Six Years of “It’s Just Postpartum”
According to the Business Insider report, the first warning sign for Marisa Peters was literal and alarming: bright red blood on the toilet paper after the birth of her first child. Over the next six years, she noticed:
- Ongoing rectal bleeding
- Changes in her bowel movements
- An urgent need to get to the bathroom
- Symptoms that just didn’t feel “normal” for her
Multiple times, she raised these concerns. Multiple times, she was reassured — told it was likely related to childbirth, hemorrhoids, or stress. No one rushed to investigate more deeply.
“I knew something wasn’t right, but I felt like I had to convince people to take it seriously.”
Eventually, when the symptoms persisted and intensified, further testing finally revealed the cause: stage 3 colorectal cancer. That diagnosis came with the weight of aggressive treatment decisions, parenting young children, and wondering if earlier action might have changed things.
Why Are Younger Adults Getting More Colorectal Cancer?
Colorectal cancer has long been seen as a disease of older adults, but that picture is changing. Recent data from organizations like the American Cancer Society show:
- Colorectal cancer rates in people under 50 have been steadily increasing over the past two decades.
- A growing proportion of new colorectal cancer cases now occur in adults in their 20s, 30s, and 40s.
- Many younger patients are diagnosed at later stages, partly because symptoms are overlooked or misattributed.
Researchers are still working to pinpoint exact causes. Likely contributors include:
- Dietary patterns higher in ultra-processed foods and red or processed meats
- Sedentary lifestyles and higher rates of obesity in some populations
- Changes in the gut microbiome
- Environmental exposures and chronic inflammation
- Family history or genetic syndromes in a minority of cases
“We now advise average-risk adults to start routine colorectal cancer screening at age 45, and to seek evaluation sooner if they have symptoms or a strong family history.”
— Guidance reflected in updated recommendations from major cancer and gastroenterology societies
Colorectal Cancer Symptoms: What’s “Normal” After Birth — and What’s Not?
Postpartum bodies go through a lot. Hemorrhoids, constipation, and changes in bowel habits can be common after pregnancy and childbirth. That’s part of why symptoms like Marisa’s were dismissed. But there are patterns and red flags that should never be ignored.
Symptoms That Should Prompt a Medical Evaluation
- Rectal bleeding, especially if:
- It continues beyond a few weeks
- It’s not clearly linked to a known hemorrhoid or tear
- You see blood mixed with stool, not just on the paper
- Persistent changes in bowel habits (over > 3–4 weeks), such as:
- New constipation or diarrhea
- Narrow or “pencil-thin” stools
- Feeling like you can’t fully empty your bowels
- Unexplained abdominal pain, cramping, or bloating that doesn’t come and go with your menstrual cycle or diet changes
- Unintentional weight loss
- Ongoing fatigue or weakness that feels out of proportion to your routine and sleep
- Iron-deficiency anemia on blood tests without another clear cause
Experiencing one of these symptoms doesn’t mean you have colorectal cancer, but it does mean you deserve a thoughtful evaluation. This might include a physical exam, blood work, stool tests, and in many cases, direct visualization of the colon via colonoscopy or sigmoidoscopy.
Why Symptoms Get Dismissed — Especially in Young Moms
Many patients, particularly women and younger adults, describe a pattern similar to Marisa’s: symptoms minimized, attributed to stress, hormones, or “normal” postpartum changes. Several factors contribute:
- Age bias: Clinicians may subconsciously think, “You’re too young for cancer.”
- Symptom overlap: Hemorrhoids, anal fissures, IBS, and postpartum changes can mimic early colorectal cancer.
- Time pressure: Short appointment slots can push complex concerns into quick, reassuring explanations.
- Gender bias: Research has documented that women’s symptoms can be taken less seriously or attributed to anxiety or hormones.
- Self-doubt: Many patients worry about “wasting the doctor’s time” or being labeled as anxious, so they underplay symptoms.
“If you feel something is wrong with your body, that feeling deserves respect — from you and from your healthcare team. You do not need to apologize for asking for tests or a second opinion.”
Recognizing these dynamics can help you be prepared, communicate clearly, and advocate for yourself in a calm, confident way.
How to Advocate for Yourself When Something Feels “Off”
You shouldn’t have to fight to be taken seriously — but if you do, it helps to have a plan. Here are practical steps to help you navigate appointments and push for appropriate colorectal cancer evaluation when needed.
1. Track Your Symptoms
Before your visit, write down:
- When symptoms started and how often they occur
- What the bleeding looks like (on paper, in the bowl, mixed with stool)
- Changes in stool consistency, frequency, or shape
- Any weight changes, fatigue, or pain
- Family history of colorectal or related cancers
2. Use Clear, Firm Language
You’re not being “difficult” by being direct. You might say:
- “I know I’m younger, but rectal bleeding and these bowel changes have persisted for months. I’m worried about colorectal cancer and would like to rule it out.”
- “What tests can we do to be confident this is not something serious?”
- “If we’re not doing a colonoscopy now, what specific signs should prompt us to move faster?”
3. Ask About Next Steps and Follow-Up
Before leaving the appointment, clarify:
- What diagnosis your clinician is considering right now
- What tests they are ordering and why
- When you should expect results
- When to return or escalate if symptoms don’t improve
4. Seek a Second Opinion if Needed
If you don’t feel heard, or your symptoms are brushed off without a clear explanation, it’s reasonable to see another clinician — ideally a gastroenterologist. You can say:
“I appreciate your time. I’m still very worried about these symptoms, and I’d like to get a second opinion from a specialist.”
Screening, Testing, and Early Detection in Younger Adults
Colorectal cancer is often highly treatable when caught early. The challenge, especially for people in their 20s–40s, is getting evaluated in time. Here’s how testing typically works, based on current guidelines from major medical organizations:
Recommended Screening Ages (for Average-Risk Adults)
- Start routine screening at age 45 if you are at average risk.
- Options include:
- Colonoscopy every 10 years (if results are normal)
- Stool-based tests (like FIT or stool DNA tests) at intervals recommended by your clinician
- Other imaging options in specific circumstances
When to Test Earlier
You may need earlier or more frequent screening if you:
- Have a first-degree relative (parent, sibling, or child) with colorectal cancer or advanced polyps
- Have certain genetic conditions (for example, Lynch syndrome, familial adenomatous polyposis)
- Live with inflammatory bowel diseases like ulcerative colitis or Crohn’s disease affecting the colon
- Have multiple concerning symptoms that persist despite initial treatment
For people under 45 with symptoms — like Marisa — guidelines emphasize that diagnostic evaluation (such as colonoscopy) should be based on clinical judgment and symptom severity, not age alone.
Beyond Diagnosis: Small, Evidence-Informed Steps to Support Colon Health
No lifestyle change can guarantee that you’ll prevent colorectal cancer. Genetics, environment, and plain chance all play roles. Still, research suggests several habits that are associated with lower risk and better overall digestive health.
- Prioritize fiber-rich foods: Vegetables, fruits, beans, lentils, and whole grains help keep stools soft and moving.
- Limit processed and red meats: High intake of processed meats (like sausages, bacon, deli meats) is linked to increased colorectal cancer risk.
- Move regularly: Even short walks can support bowel function and overall metabolic health.
- Avoid or quit smoking: Smoking is associated with higher colorectal cancer risk.
- Moderate alcohol: Heavier drinking is linked to higher risk; staying within low-risk drinking guidelines is advisable.
- Know your family history: Share it with your clinician; it can change your screening plan.
Before and After: The Impact of Being Heard
We don’t have every detail of Marisa’s journey beyond what she and reporters have shared, but we can see a powerful contrast in many patients’ stories:
| Before Being Taken Seriously | After Diagnosis and Proper Workup |
|---|---|
| Symptoms dismissed as “just postpartum,” stress, or hemorrhoids | Clear explanation of what’s happening and why |
| Growing anxiety and self-doubt | A treatment plan and support team |
| Delayed diagnosis and potentially more advanced disease | Chance for targeted treatment, symptom relief, and planning |
The emotional shift many patients describe — from being brushed off to finally having a name for what’s going on — can be profound. While a cancer diagnosis is never easy, being heard and believed is often the first real step toward healing, whatever that looks like for each person.
Where to Find Reliable Information and Support
If you’re worried about colorectal cancer, it helps to get information from trustworthy, science-based sources. Look for organizations that:
- Publish their medical review process and update dates
- Link to peer-reviewed studies and clinical guidelines
- Offer clear, balanced information (not miracle cures)
Examples of reliable places to start include:
- Major national cancer organizations and registries
- Professional groups for gastroenterologists and colorectal surgeons
- Government public health agencies with cancer prevention sections
Many of these sites provide questions to ask your doctor, explanations of screening options, and patient support resources — including helplines and online communities.
Moving Forward: Your Body’s Warnings Deserve Attention
Stories like Marisa’s are painful to read. They can also be a catalyst for change — in how clinicians think about “young” patients with rectal bleeding, and in how each of us responds when something in our body doesn’t feel right.
You don’t have to memorize every symptom or guideline. Instead, remember these core ideas:
- Colorectal cancer can occur in younger adults, including people in their 30s.
- Persistent rectal bleeding or bowel changes are not something to ignore.
- You are allowed to ask for tests, second opinions, and referrals.
- Early detection can make a meaningful difference in treatment options and outcomes.
If something about your digestion, bowel habits, or rectal health has been worrying you — especially if you’ve been told it’s “just postpartum” or “just stress” — consider this your invitation to take the next step:
- Write down your symptoms and how long you’ve had them.
- Book an appointment with your doctor or a gastroenterologist.
- Bring a friend or partner if it helps you feel more supported.
- Ask directly: “Can we rule out colorectal cancer?”
You are not being dramatic. You are taking care of yourself — and, if you’re a parent, of the people who depend on you. Your health is worth that effort.
