2. Low-Grade Fever That Lingers.
A fever–even a low-grade one–is a sign of infection. When your immune system is fighting off an intruder of any kind, heat is generated and body temperature will rise.
If the fever lasts longer than 3 or 4 days and isn’t accompanied by any other usual symptoms of virus or bacterial infection, it’s wise to see your healthcare provider. Fever can be an early sign of lymphomas and leukemia as well as other serious conditions like urinary tract infection and tuberculosis.
3. Problems with Swallowing.
Any persistent pain or tightness in your mouth or throat may be an indication of early cancer of the mouth, throat, or esophagus. Some symptoms of thyroid disease include tightness of the neck and a hoarse voice as well.
Lip sores that don’t heal, a sore throat that lasts longer than a week or that recurs, and consistent hoarseness of the throat can indicate a problem.
Of course, unexplained bleeding of any kind is cause for alarm–don’t wait to be examined. Regular use of tobacco–whether smoked or chewed–greatly increases your risk for cancers of the mouth and esophagus.