Colon and Rectal Surgery of New York

Colon and Rectal Surgery of New York For the past 20 years, Dr. Lynn M.

O’Connor has made it her mission to provide patients with the foremost treatment, technology, and information related to preventive public health issues, and colon and rectal health.

As a colore**al surgeon, I’m deeply concerned about what we’re witnessing in our operating rooms and clinics: colore**al...
03/10/2026

As a colore**al surgeon, I’m deeply concerned about what we’re witnessing in our operating rooms and clinics: colore**al cancer is surging in people under 50, and we need to talk about it NOW.

This isn’t a distant threat. Colore**al cancer rates in young adults have been rising steadily, and the trajectory is alarming.

What’s even more troubling? Many young patients dismiss critical warning signs as IBS or digestive issues until it’s too late.

Here’s what you MUST know.

‼️The Warning Signs Your Body Is Giving You:
→ Changes in bowel habits (frequency, consistency)
→ Blood in stool or re**al bleeding
→ Persistent abdominal pain or bloating
→ Unexplained weight loss
→ Constant fatigue or breathlessness
→ Feeling like you need to go even after using the bathroom

✨The Risk Factors We Can Control:
Research points to lifestyle as a major driver—poor diet, excessive alcohol consumption, obesity, processed meats, low fiber intake, and sugar-sweetened beverages all contribute.

Our modern environment and habits are literally feeding this disease.

But here’s the truth that keeps me fighting every day: when caught early, colore**al cancer is highly treatable.

The problem? Too many people wait. Too many ignore symptoms. Too many think “I’m too young for this.”

You’re NOT too young. This disease doesn’t check your birth certificate.

👉YOUR ACTION STEP: If you’re experiencing ANY of these symptoms for more than three weeks, don’t wait. Don’t dismiss it. Don’t convince yourself it’s nothing.

Advocate for yourself. Demand testing.

Early detection saves lives—I’ve seen it save countless patients in my care.

Talk to your loved ones about this. Share this information. Normalize these conversations.

The life you save could be your own or someone you love.

**allCancerAwareness **alSurgery

🚨 STOP SCROLLING. This discovery from UT Southwestern just revolutionized how we understand early-onset colore**al cance...
03/05/2026

🚨 STOP SCROLLING. This discovery from UT Southwestern just revolutionized how we understand early-onset colore**al cancer... and it could save your life.

As a colore**al surgeon who has watched this disease strike younger and younger patients, I’ve been waiting for answers. Now we have them.

New research published in Advanced Science reveals something shocking: COLON STIFFNESS driven by chronic inflammation is a critical early warning sign for cancer in people under 50. 🔬

Here’s what keeps me up at night: 📊
Tissue samples from young colore**al cancer patients showed dramatically stiffer colons than older patients.

But here’s the game-changer: Both the tumors AND the surrounding “healthy” tissue were stiffer.

Translation? The stiffening happens BEFORE cancer even develops. ⚠️

Chronic inflammation triggers scarring that makes your colon tissue dense and rigid, creating literal “highways” for cancer cells to grow faster and spread more aggressively.

Your body is building the infrastructure for disease without you knowing it.

This changes EVERYTHING: 💡
→ Diet and lifestyle matter, but chronic inflammation is physically reshaping your colon at the cellular level
→ IBD and persistent GI issues aren’t just uncomfortable, they’re remodeling tissue in dangerous ways
→ We may soon detect at-risk tissue BEFORE cancer forms
→ New treatments could target the stiffness pathway itself

This is exactly why I’ve dedicated my career to early detection and awareness. We can’t fight what we don’t understand. Now we understand. ✨

TAG someone under 50 who needs to see this. One share could literally save a life. Do it now.

**alCancer

03/02/2026

It was another long day in the OR, but I wanted to connect to share that March is Colore**al Cancer Awareness Month.

As a colore**al surgeon, I need you to understand something:
This is the most preventable cancer we face—yet it’s now the #1 cancer killer in people under 50.

Let that sink in. Preventable. Yet deadly. ⚠️

Why the disconnect?
Because people are missing screenings. Ignoring symptoms. Assuming they’re “too young.” Waiting until it’s too late. ⏰

Here’s what I see in the OR that keeps me up at night:
❌ 20-year-olds with Stage 4 disease
❌ 35-year-olds who blamed symptoms on stress
❌ 40-year-olds who didn’t know screening starts at 45

The good news.
✨When we catch it early, survival rates are over 90%.
✨Colonoscopies can find and remove precancerous polyps before they ever become cancer.
✨Screening literally prevents cancer from happening.

KNOW THESE SIGNS:
🚨Changes in bowel habits
🚨Re**al bleeding or blood in stool
🚨Persistent abdominal cramping
🚨Unexplained weight loss
🚨Constant fatigue

Don’t wait. Don’t ignore. Don’t assume.
✓ If you’re 45+, schedule your colonoscopy
✓ If you have symptoms at ANY age, demand to be taken seriously
✓ If you have a family history, talk to your doctor about earlier screening

This month isn’t just about awareness—it’s about action.

Your life could literally depend on what you do next. 💜

**alCancerAwarenessMonth ​​​​​​​​​​​​​​​​ **alCancerAwarenessMonth

🚨 As a colore**al surgeon who has dedicated my career to fighting this disease, I need you to understand what this break...
02/26/2026

🚨 As a colore**al surgeon who has dedicated my career to fighting this disease, I need you to understand what this breakthrough means.

For decades, I’ve held patients’ hands post-surgery, looked them in the eyes, and tried to answer the question that keeps them awake at night: “Am I really cancer-free?”

Traditional staging could only give us part of the answer.

Not anymore.

The largest study of its kind (over 2,000 Stage 3 colon cancer patients) proves that ctDNA blood testing (Guardant Reveal) detects what our imaging and pathology cannot: Microscopic cancer DNA still circulating after surgery.

The data is staggering: 📊
∙20% of patients had detectable cancer DNA post-surgery despite “clear” conventional tests
∙These patients faced 4-6x higher recurrence risk ⚠️
∙Even “favorable” staging patients showed 6x higher risk when ctDNA was present

This is why my life’s work centers on early detection and screening. Early detection saves lives. ❤️

But precision detection after treatment?

That saves lives, too, by guiding us to treat aggressively when needed and spare patients when it’s not.

Every patient deserves personalized, molecular-level care. Every patient deserves answers beyond what a scan can show. 🔬

This published research from Mayo Clinic isn’t just data—it’s hope. It’s the future of how we fight colore**al cancer. ✨

Get screened. Push for innovation. Demand precision care. Lives depend on it. 🎗️

YOUR TURN: Have you or a loved one been impacted by colore**al cancer? What questions do you wish you could have answered after treatment? Drop a comment below—your story could help someone else.

♻️ SHARE this if you believe in the power of early detection and precision medicine.

**alCancer

02/23/2026

"Had they waited until 45, we'd be having a vastly different conversation."

I said that to my patient today — a 25-year-old — after removing a large precancerous polyp during a colonoscopy I almost didn't get to perform.

They came to me with re**al bleeding and changing bowel habits.

We talked about next steps. They wanted to wait. I understood — no one wants to hear they need a colonoscopy at 25. But when the symptoms returned and persisted, we moved forward together.

I am so glad we did.

What I found was a large precancerous polyp. One that, left undetected, could have changed the entire trajectory of this young person's life.

Instead, today they walked out with a clean bill of health and a future that looks very different from what it could have.

This is exactly why I show up every single day as a colon and re**al surgeon.

Not just to operate — but to educate, to advocate, and to remind people that your symptoms are worth taking seriously, no matter your age.

Colore**al cancer is no longer just a disease that affects older adults.

Rates in young people are rising. And the gap between "I'll wait and see" and "I wish we had caught this sooner" can be smaller than any of us want to believe. ⚠️

The standard screening age is 45 — but your body does not follow a calendar. If something feels off, speak up.

Advocate for yourself. Find a physician who will listen.

The signs to know
⚕️Re**al bleeding
⚕️Changes in bowel habits
⚕️Unexplained abdominal pain or cramping
⚕️Unintended weight loss
⚕️Persistent fatigue

It's out. It's gone. This patient is going to be okay. And that is everything.

If this post reaches even one person who needed to hear it today, please share it.

You could be saving someone's life — and you might not even know it.

**alCancer **alSurgery

02/17/2026

I recently had the opportunity to speak with Good Morning America about Catherine O’Hara’s passing, and I want to share something crucial that isn’t being widely discussed.

Catherine didn’t die from re**al cancer itself. She died from a pulmonary embolism, a blood clot that traveled to her lungs. ⚠️

This is a danger that deserves far more attention:
‼️Colore**al cancer patients are at significantly higher risk for life-threatening blood clots, especially in the critical 3-6 month window after diagnosis and during chemotherapy.

It’s a complication that can strike suddenly.

It’s often unexpected. And it can be fatal.

But here’s what gives me hope as a physician:
🩺Colore**al cancer itself is one of the most preventable cancers we face.

Screening works. Early detection changes everything.

And when patients and their care teams are aware of clot risks, we can take proactive steps to prevent them.

Know these warning signs:
🚨Changes in bowel habits
🚨Re**al bleeding or blood in stool
🚨Persistent abdominal pain or cramping
🚨Unexplained weight loss
🚨Ongoing fatigue

Don’t wait. Don’t dismiss symptoms. Don’t assume you’re “too young” or “too healthy.”

Catherine’s legacy is laughter, warmth, and unforgettable performances.

Let’s honor her by having the conversations that matter—about screening, about symptoms, about the complications we can prevent.

Link to the full story in the comments.

**alCancerAwareness

02/13/2026

Just stepped out of a long day in the OR, but I needed to address this news immediately.
James Van Der Beek's story is too important not to talk about right now.

James noticed something was off—a change in bowel habits. He was fit, healthy, doing cold plunges. He blamed his coffee.

It was stage 3 colon cancer.
🚨 COLON CANCER IS NOW THE #1 CANCER KILLER IN PEOPLE UNDER 50

James's story reveals a deadly pattern:
Young patients see 2-3 doctors before diagnosis
Symptoms get dismissed or explained away
By the time they're diagnosed, it's often advanced

HE DIDN'T KNOW:
⚠️ Screening age dropped from 50 to 45
⚠️ Changes in bowel habits are a red flag
⚠️ Being "young and healthy" doesn't make you immune

Stage 3 means the cancer spread beyond the colon wall. It means chemotherapy. It means the fight just got exponentially harder.

Early detection literally saves lives. But you have to know what to look for.

DEMAND a colonoscopy if you notice:
👉 Changes in bowel habits
👉 Re**al bleeding
👉 Persistent abdominal pain
👉 Unexplained weight loss
👉 Ongoing fatigue

Don't let a doctor dismiss you because of your age. Don't dismiss yourself.

James's tragedy can be your wake-up call.

Yesterday, we lost actor James Van Der Beek at just 48 years old to colore**al cancer. This loss underscores a devastati...
02/12/2026

Yesterday, we lost actor James Van Der Beek at just 48 years old to colore**al cancer.

This loss underscores a devastating reality that demands our immediate attention: Colore**al cancer is now the #1 cause of cancer-related deaths in Americans under 50. 🚨

Let me repeat that. The leading cause of cancer death for people under 50.

James was diagnosed with Stage 3 disease in 2023—in his mid-40s, in peak cardiovascular health, living an active lifestyle.

He had no idea.

His only clue was subtle changes in bowel movements that he initially dismissed as related to coffee consumption.

While death rates for other major cancers have declined, colore**al cancer deaths in young adults have climbed by 1% annually since 2005, making it the ONLY major cancer with a mortality rate increasing in this age group. 📈

Why is this happening?

Three out of four young patients are diagnosed at advanced stages.

When caught early, the five-year survival rate is 89%.

At advanced stages? It drops to 16%. ⏰

The tragedy is that colore**al cancer is highly preventable and curable when caught early.

But we’re missing the window because young people (and too often their doctors) dismiss the symptoms as “too young for cancer.”

If you take away anything from this devastating loss: ⬇️
✅ Get screened starting at age 45—even if you feel perfectly healthy
✅ Don’t wait for symptoms to become obvious
✅ Pay attention to ANY changes in bowel habits, no matter how minor
✅ If you have a family history, start screening earlier—at age 40 or 10 years before a family member’s diagnosis

James spent his final months advocating for awareness, urging people to get tested.

Let’s honor his memory by listening.

**alCancer

HOPE. PROGRESS. SURVIVAL.We've reached a watershed moment in cancer care: Cancer survival rates have hit an all-time hig...
02/11/2026

HOPE. PROGRESS. SURVIVAL.

We've reached a watershed moment in cancer care: Cancer survival rates have hit an all-time high of 70%—meaning 7 in 10 patients diagnosed with cancer today will be alive five years from now.

This represents remarkable progress from just 50% in the mid-1970s.

For my colon and re**al cancer patients, this milestone carries special meaning.

Colore**al cancer survival stands at approximately 65%, with early-stage, localized disease achieving survival rates over 91%.

When we catch it early, we can cure it.

This progress is the result of decades of scientific investment, better detection methods, and improved surgical techniques.

As a surgeon, I've witnessed firsthand how minimally invasive approaches, precision medicine, and targeted therapies are transforming outcomes for our patients.

But here's what matters most: Early detection saves lives.

Survival is dramatically higher when colore**al cancer is found before it spreads. That colonoscopy you've been putting off? It could be the difference between a 91% survival rate and a much harder fight.

If you're 45 or older, or have a family history, screening isn't optional—it's essential.

Every day in my practice, I see what early detection makes possible: complete cures, preserved quality of life, and futures restored.

This 70% survival milestone isn't just a statistic.

It's thousands of patients who get to see their children graduate, celebrate anniversaries, and live full lives. It's proof that our investment in cancer research and screening works.

Don't wait. Schedule your screening. Your life may depend on it.

**alCancer

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