1. Persistent fatigue
Persistent fatigue is often the earliest and most common symptom of blood disorders such as leukemia. This type of fatigue is different from normal tiredness; it does not improve with rest and tends to worsen over time. The underlying cause is usually anemia, a reduction in red blood cells due to the bone marrow’s impaired ability to produce healthy cells.
When leukemia cells crowd out normal blood cell production, your body receives less oxygen transport, leading to a sustained feeling of exhaustion. You may find everyday activities like climbing stairs or concentrating at work unusually difficult.
- Fatigue that lasts for weeks without an obvious cause
- Weakness that limits physical activity
- Feeling worn out even after adequate sleep
If you experience persistent fatigue alongside other symptoms discussed here, it is important to consult a healthcare provider for a complete blood count (CBC) test to evaluate your blood cell levels.
2. Frequent infections
Leukemia disrupts the immune system by producing abnormal white blood cells that cannot effectively fight infections. This leads to an increased frequency and severity of infections such as sinusitis, pneumonia, urinary tract infections, or skin infections.
People with leukemia may notice they catch illnesses more often or that infections last longer than usual despite treatment. This immune deficiency results from the bone marrow’s failure to produce enough healthy white blood cells, which are vital for immune defense.
- Recurring fever or chills
- Prolonged infections requiring antibiotics
- Frequent respiratory or skin infections
Seeing a doctor for blood tests and possibly bone marrow examination is recommended if you have frequent infections with no clear cause, especially when combined with fatigue or other symptoms.
