Many types of leukemia produce no obvious symptoms in early stages. Eventually, symptoms may include any of the following:
Anemia and related symptoms, such as fatigue, pallor, and a general feeling of illness.
A tendency to bruise or bleed easily, including bleeding from the gums or nose, or blood in the stool or urine.
Susceptibility to infections such as sore throat or bronchial pneumonia, which may be accompanied by headache, low-grade fever, mouth sores, or skin rash.