Increased fat in the body may affect chronic inflammation, cell growth, cells' lifespan, hormone levels, and other factors that control cell growth. These things might raise the risk of cancer. But the relationship between cancer and excess weight is complex. More research is needed to fully understand it.
Some of the cancers linked to excess weight include:
- Breast
- Colon
- Rectal
- Endometrial
- Kidney
- Liver
- Ovarian
- Pancreatic
- Stomach
- Thyroid
- Esophageal
- Multiple myeloma
- Gallbladder
- Meningioma
It's important to remember that not everyone who carries extra weight will develop these cancers. But the risk is higher. And excess weight is more of a factor for some cancers than others. For people who have survived cancer, reducing excess weight may help lower the risk of some cancers linked with obesity from coming back (recurrence).