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13. Cough
A persistent cough and a sore throat are considered signs of respiratory cancer, such as laryngeal or lung cancer. See your doctor if the cough does not go away.
14. Unusual lymph nodes
When your lymph nodes are unexpectedly swollen or tender and uncomfortable. You should see a doctor.
15. Fatigue
It may sound strange, but fatigue can also be a warning sign of cancer, as it is a natural reaction of the immune system. Some cancers can also trigger blood loss, which in turn leads to fatigue. See your doctor if you feel tired.
Note: Despite the above signs, be sure to consult your doctor. Prompt intervention is extremely important because it increases the chances of the cancer becoming infected before it affects other parts of the body.
