15 Cancer Symptoms To Watch Out For

2. Nagging cough.

Usually if you do not smoke and have a nagging cough, it is very lightly that it may be cancer. What it more likely that is caused by postnasal drip, asthma, acid reflux, or an infection. However, if you are a smoker and have a cough with blood, do consult a doctor, who will have to perform tests on your mucus.

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