Fever – A fever that doesn’t go away and can’t be explained could mean leukemia or another blood cancer. Your doctor should get the details of your medical history and give you a physical exam to check for the cause.

Fatigue – Talk to your doctor if your fatigue never gets better or if you have other symptoms, like blood in your stool. Your doctor will ask for your complete medical history and give you blood tests.

Change in Urination – Urinary symptoms can include frequent urination, small amounts of urine, and slow urine flow or a general change in bladder function. These symptoms can be caused by urinary infections (usually in women) or, in men, by an enlarged prostate gland.