
Cancer: When you might want a second opinion
If you're faced with decisions about cancer treatment, getting a second opinion can help. Here are a few reasons you may want to consider getting another doctor's take on your cancer and how to address it.
You want to feel more confident in your decision
If you have concerns about your treatment plan, getting a second doctor's perspective can give you peace of mind and help you feel confident that your diagnosis is accurate and your treatment plan is the best way forward.
You have a rare type of cancer
If your cancer is rare, many doctors may not have a lot of experience treating it. A specialist is likely to have the most current knowledge about your cancer and its treatments. If you choose this route, ask your doctor what type of specialist will have expertise in your specific type of cancer.
You want to explore more treatment options
There may be more than one way to treat your cancer. A second opinion can help you find out what may be possible. A different doctor may suggest a different approach.
You need more information about your cancer
Getting more information is important if your doctor isn't sure about the type or stage of your cancer. A second opinion can help you get a more complete picture of your diagnosis.
You need help choosing which treatment option is best
Has your doctor offered multiple treatment options? Having another doctor review those options with you can help you understand your choices and help you decide what's best for you.
Sharing medical records
The doctor giving a second opinion will need your medical records. Learn how to manage this information.
Reviewed 10/14/2025
Sources
- American Cancer Society. "Seeking a Second Opinion." https://www.cancer.org/cancer/managing-cancer/finding-care/seeking-a-second-opinion.html.
- American Lung Association. "Getting a Second Opinion: Top 5 Signs You Should Seek a Second Opinion About Your Lung Cancer Treatment." https://www.lung.org/lung-health-diseases/lung-disease-lookup/lung-cancer/treatment/lung-cancer-team/second-opinion.
- National Cancer Institute. "Finding Cancer Care." https://www.cancer.gov/about-cancer/managing-care/finding-cancer-care.
- The Oral Cancer Foundation. "The Importance of a Second Opinion." https://oralcancerfoundation.org/discovery-diagnosis/importance-second-opinion.