Acute Myeloid Leukemia (AML): 16 Warning Signs and Symptoms

AML presents with symptoms of bone marrow failure (cytopenias) and leukemic infiltration. Early recognition enables prompt diagnosis and treatment.

Symptoms by Mechanism

Anemia (↓ RBCs)

• Fatigue, exertional dyspnea, pallor, tachycardia, angina (if CAD)

Thrombocytopenia (↓ Platelets)

• Petechiae, ecchymoses, epistaxis, gingival bleeding, menorrhagia
• DIC (in APL): bleeding + thrombosis

Neutropenia (↓ Functional Neutrophils)

• Fever (often only sign), recurrent infections, poor wound healing
• Neutropenic sepsis: medical emergency

Leukemic Infiltration

• Bone pain (marrow expansion — back, ribs, long bones)
• Splenomegaly/hepatomegaly (LUQ/RUQ fullness, early satiety)
• Gingival hyperplasia (monocytic subtypes M4/M5)
• Skin lesions (leukemia cutis — nodules, plaques)
• CNS symptoms (headache, cranial nerve palsy) — rare at diagnosis

Metabolic/Constitutional

• Weight loss, anorexia, night sweats, low-grade fever (cytokine-driven)
• Hyperuricemia (tumor lysis risk), hyperleukocytosis (>100k → leukostasis: respiratory/neurologic distress)

Diagnostic Imperative

CBC with differential + peripheral smear → circulating blasts? → Bone marrow aspirate/biopsy (morphology, flow cytometry, cytogenetics/FISH, NGS panel). WHO classification integrates genetics.

Urgency

• Hyperleukocytosis, DIC, tumor lysis, neutropenic fever → emergent hospitalization.
• Otherwise: urgent hematology referral within days.