7. Blood in the Urine
Seeing blood in your urine should not simply be dismissed.
Urinary infections, kidney stones, medications, and other conditions can cause it, but blood in the urine can also be associated with cancers of the urinary tract.
Even if the bleeding occurs only once, medical evaluation is appropriate.
8. Unusual Bleeding
Unexpected bleeding can take different forms, including:
- Coughing up blood
- Vomiting blood
- Blood in stool
- Blood in urine
- Vaginal bleeding after menopause
- Unusually heavy or abnormal menstrual bleeding
There are numerous possible causes, but unexplained bleeding is a symptom that should be investigated rather than assumed to be harmless.
9. A Persistent Cough or Hoarse Voice
A cough that lasts for weeks, particularly when there is no obvious explanation, may warrant medical attention.
A persistent cough can be caused by allergies, asthma, acid reflux, infections, smoking, medications, and other respiratory conditions. In some cases, however, it can be associated with lung or other cancers.
Hoarseness that does not resolve should also be evaluated.