11. Fever
Fever is most commonly related to cancer of the immune system, but it can also suggest any type of cancer that begins to infect other organs.
12. Weight Loss
If you lose too much weight without exercising or dieting, it could be a sign of cancer. According to the American Cancer Society, most cancer patients experience sudden weight loss.
13. Cough
A persistent cough and a scratchy throat are signs of respiratory tract cancer, such as throat or lung cancer. See your doctor if your cough does not go away.
14. Unusual nymphs
If your lymph nodes are unexpectedly swollen or tender and uncomfortable. You should seek medical attention.
15. Fatigue

It may seem strange, but fatigue can also be a warning sign of cancer because it is the natural action of the immune system. Some cancers can also cause blood loss, which also causes fatigue. See your doctor if you feel tired.

Note: Despite these signs mentioned above, be sure to consult your healthcare professional. Reacting in time is of utmost importance, as it increases the chances of attacking the cancer before it infects other parts of the body.