What are the early symptoms of blood cancer?

Leukemia, also known as blood cancer, presents with various and noticeable early symptoms. The main symptoms include: 1. **Anemia**: Patients may appear pale and experience fatigue and weakness, primarily caused by a reduced number of red blood cells. 2. **Fever**: Many patients develop irregular fever in the early stages, which can range from low to high grade, and is associated with impaired immune function and an increased risk of infection. 3. **Swollen lymph nodes**: Patients may develop painless enlargement of lymph nodes, most commonly found in the neck, armpits, and groin. 4. **Bleeding**: Approximately 40% of patients experience early symptoms of bleeding, such as petechiae or bruising of the skin and mucous membranes, which may be related to reduced platelet count and abnormal coagulation function. The appearance of these symptoms may be associated with the abnormal proliferation and infiltration of leukemia cells. If these symptoms persist, timely medical evaluation is necessary.