Our 24/7 cancer helpline provides information and answers for people dealing with cancer. We can connect you with trained cancer information specialists who will answer questions about a cancer diagnosis and provide guidance and a compassionate ear.
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Our highly trained specialists are available 24/7 via phone and on weekdays can assist through video calls and online chat. We connect patients, caregivers, and family members with essential services and resources at every step of their cancer journey. Ask us how you can get involved and support the fight against cancer. Some of the topics we can assist with include:
Referrals to patient-related programs or resources
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For medical questions, we encourage you to review our information with your doctor.
A risk factor is anything that changes your chance of getting a disease such as cancer. Different cancers have different risk factors. For example, exposing skin to strong sunlight is a risk factor for skin cancer. Smoking is a risk factor for lung cancer and many other cancers. But people without any risk factors can still get the disease. And having a risk factor, or even several, does not mean that you will get the disease. Because chronic myelomonocytic leukemia (CMML) is rare, it has been hard to study. For a long time it was grouped with myelodysplastic syndromes. As a result, only a few risk factors are known for this disease.
The risk of CMML increases with age. This disease is rare in those younger than 40, with most cases found in people 60 and older.
CMML is about twice as common in men as in women.
Prior treatment with chemotherapy seems to increase the risk of CMML. The risk of CMML after cancer chemotherapy, however, is not as high as the risk of other blood problems, such as myelodysplastic syndromes and acute myeloid leukemia. Second Cancers in Adults has more information on this.