Why August Matters: Shining a Light on Appendix Cancer Awareness Month

When you hear “appendix,” most people think of that tiny, often-overlooked organ that gets removed when it acts up. But what many don’t realize is that the appendix can also be the site of a rare and complex form of cancer—one that’s often misdiagnosed, misunderstood, and under-researched. That’s why August is National Appendix Cancer Awareness Month, a time to educate, advocate, and support the thousands of people affected by this rare disease.

Appendix cancer (or appendiceal cancer) is diagnosed in roughly 1 to 2 people per million each year. It comes in several types, ranging from slow-growing tumors like low-grade appendiceal mucinous neoplasms (LAMNs) to aggressive forms such as adenocarcinomas or signet ring cell carcinoma. Because symptoms are often vague—bloating, abdominal pain, changes in bowel habits—many people aren’t diagnosed until the cancer has spread throughout the abdominal cavity, a condition called pseudomyxoma peritonei (PMP).

For many patients, the journey to diagnosis is long and frustrating. Appendix cancer can mimic other conditions like ovarian cancer or irritable bowel syndrome, and since it’s so rare, many doctors have never seen a case. That delay in diagnosis can make treatment more complex. In fact, some people only learn they have appendix cancer after a routine appendectomy for what was thought to be simple appendicitis.

Treatment for appendix cancer is highly specialized. If the cancer is localized to the appendix, surgery to remove the appendix might be sufficient. But if it’s spread to other organs, it could involve cytoreductive surgery (CRS) combined with HIPEC (hyperthermic intraperitoneal chemotherapy)—a procedure in which heated chemo is circulated in the abdomen after surgery to kill microscopic cancer cells. It's a demanding treatment, but it has given many patients years—sometimes decades—of extended life.

Because appendix cancer is so rare, research funding is minimal, and there are few clinical trials or FDA-approved drugs specifically for it. That’s why raising awareness during Appendix Cancer Awareness Month is so important. The more people know about the disease, the better chance we have of catching it early and advocating for the kind of research funding and medical innovation that more common cancers already receive.

So how can you help?

• Share stories. Whether you're a patient, caregiver, or advocate, your experience matters. Sharing it publicly can help others feel less alone.
• Support organizations like the ACPMP Research Foundation, which funds research and provides support for people affected by appendiceal cancer and PMP.
• Educate your circle. Most people have never even heard of appendix cancer. Add these links to your wellnest journal to help educate the people following your journey.
• Wear periwinkle. That’s the awareness color for appendix cancer. It might seem small, but even visual cues help spark conversations. A quick compliment can lead to more awareness.

Appendix Cancer Awareness Month isn’t just about a rare diagnosis. It’s about real people, real lives, and the power of collective awareness. Every voice counts, and every shared story brings us one step closer to better treatments, earlier detection, and, hopefully, a cure.

This August, let’s give this tiny organ the attention it deserves—and the people living with its cancer the visibility and support they need.