Is cancer contagious?
A frequently asked question that we’d like to clarify
When someone close to you is diagnosed with cancer, the question often arises: Is cancer contagious? The answer is simple and reassuring: no, cancer is not contagious. You cannot pass cancer on to others the way you might a cold or the flu. However, there are some misconceptions about this topic, which we’d like to clear up for you.
Leonard Bokhorst (radiation oncologist and co-founder)
What exactly is cancer, and how does it develop?
Cancer is caused by changes in the DNA of the body’s cells. These changes cause cells to divide uncontrollably and eventually form a tumor. This is an internal process within the patient’s own body and has nothing to do with external infection. Therefore, you cannot transmit cancer through touch, hugging, or eating together.
Where do these misunderstandings come from?
The confusion often arises because some forms of cancer are indirectly linked to viruses or bacteria. For example:
The HPV virus, which increases the risk of cervical cancer
Hepatitis B and C, which can increase the risk of liver cancer
The bacterium Helicobacter pylori, which plays a role in stomach cancer
While these viruses and bacteria can be contagious, that doesn’t mean you’ll get cancer from someone who has the disease. The virus may increase your risk, but cancer is always a process that occurs within the individual’s body.
Cancer is not an infectious disease
It is important to understand that cancer is not a contagious disease. It is not transmitted through contact, blood, saliva, or the air. Using the same toilet, cutlery, or dishes also poses no risk whatsoever.
Is it okay to touch someone with cancer?
Absolutely. There is absolutely no reason to keep your distance out of fear of infection. On the contrary: touch, closeness, and support are often very important to people with cancer. Physical contact poses no risk whatsoever.
What can you do instead?
Although you cannot pass cancer on to others or catch it from someone else, there is a lot you can do to reduce your own risk. For example:
No smoking
Moderate alcohol consumption
Eating a healthy and varied diet
Getting enough exercise
Participate regularly in population-based screening programs
If you have any concerns about your health, or if you have questions about your own situation, please feel free to contact us at any time.
Need personalized advice?
At Mauro Medical Specialists, we provide guidance on questions about cancer, treatments, and decisions that go beyond mere medical facts. We work with you, explain things clearly, and guide you every step of the way.
Would you like to know how we can help you? Feel free to contact us to schedule an introductory meeting. We’ll listen to your needs, offer advice, and guide you every step of the way.