5. Lumps
If you notice that your new piece or an old one is changing, you should consult your doctor. It can be associated with several types of cancer.
6. Indigestion
The most misdiagnosed symptom is indigestion, as it is an extremely common concern. Nevertheless, the symptom may also show cancer of the upper gastrointestinal tract, particularly if it is accompanied by stomach discomfort and swallowing.
