
Merkelcell.org – Your trusted resource for Merkel cell carcinoma information
Welcome! Defeating Merkel cell carcinoma begins here.
Merkel cell carcinoma (MCC) is a rare and aggressive skin cancer. This website is here to support everyone affected by MCC—patients, families, and medical teams. You’ll find trusted information, expert contacts, and valuable tools like the Recurrence Risk Calculator and up-to-date treatment guidelines. We hope this site helps you find answers, make informed decisions, and take the next steps—from any point on the MCC journey.

Find specialists: The most important step
The most important thing you can do after an MCC diagnosis is find a medical team that truly understands this rare cancer. Specialists who have experience with MCC know the best ways to work together to treat it. Having an expert team by your side—right from the start—can make a big difference in your treatment and recovery.

Support matters
Dealing with MCC can feel overwhelming, but you don’t have to face it alone. Join the MCC Online Support Group and share your journey with other patients and families who understand.
Find the information you need:

Recognize the symptoms
Step 1.
MCC often starts as a painless, firm bump that can be red, purple, or skin-colored. It usually grows quickly and may look different from anything you’ve had before. Know what to look for and when to be concerned.