With so many different types of cancers, it can be hard to know what you should keep a close eye on. But according to the American Cancer Society, there are 15 common warning signs:

1. Extreme tiredness
2. Unexpected weight loss or gain
3. Loss of appetite or nausea
4. Swelling or lumps
5. Lump or thickening of tissue in the breast(s)
6. New pain that doesn’t go away and gets worse over time
7. Skin changes
8. Lingering cough
9. Unusual bleeding or bruising
10. Change in bowel habits
11. Bladder changes
12. Fever or nights sweats
13. Headaches
14. Vision or hearing problems
15. Mouth sores, bleeding or pain

“These symptoms can be the first sign that something is wrong outside of routine cancer screenings such as mammograms, pap smears and colonoscopies,” explains Dr. Suchin Khanna, a hematologist and oncologist at Advocate Health Care. “However, these symptoms can be nonspecific to cancer and can be caused by many other conditions.

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