Acute myeloid leukemia warning signs causes and modern treatments

Acute Myeloid Leukemia, or AML, is a type of blood cancer that starts in the bone marrow. In AML, immature white blood cells grow abnormally fast and prevent the body from producing healthy blood cells. Although it is a serious condition, early detection and proper treatment can make a significant difference in recovery chances. In this Medical Guide, we’ll explore AML symptoms, causes, diagnosis methods, available treatments, and daily management tips for patients.

What is Acute Myeloid Leukemia (AML)?

AML is a fast-growing blood cancer that begins in the blood-forming cells of the bone marrow. The bone marrow is a spongy tissue inside the bones responsible for producing red blood cells, white blood cells, and platelets.

In AML, the bone marrow produces a large number of abnormal, immature white blood cells called myeloblasts. These cells do not mature into healthy blood cells and accumulate in the marrow, preventing normal blood cell production. This leads to:

Red blood cell deficiency (anemia): causes fatigue and weakness
Low normal white blood cells: increases the risk of infections
Low platelets: causes easy bleeding and bruising

These issues can develop rapidly, often over days or weeks, which is why AML requires quick diagnosis and immediate, effective treatment.

AML is the most common type of acute leukemia in adults but can also affect children. Despite its severity, recent advances in treatment—especially targeted therapies—have significantly improved survival rates for many patients.

Is AML Contagious?

No. AML is not contagious and cannot be transmitted from person to person through blood or casual contact.

Can AML be Completely Cured?

Yes. In some cases, complete remission is possible, especially with early diagnosis and prompt treatment. Some patients may require a bone marrow or stem cell transplant to increase the chances of full recovery and reduce the risk of relapse.

Can Children Get AML?

Yes, children can develop AML, although it is less common than in adults. The good news is that children generally respond better to treatment, increasing their chances of recovery.

Is Chemotherapy Painful?

Chemotherapy itself does not cause direct pain, but it can produce side effects such as:

Nausea and loss of appetite
Hair loss
Severe fatigue

Medical teams provide supportive medications and care to help reduce these side effects and make treatment more tolerable.

Can Patients Exercise During Treatment?

Yes. Light exercise, tailored to the patient’s capacity, can help improve energy, mood, and reduce stress related to the disease and treatment. Patients should always consult their doctor to determine safe activity types and levels.

Can Patients Get Pregnant During or After AML?

During treatment: Pregnancy is not safe due to chemotherapy’s effects on the fetus.
After recovery: Pregnancy may be considered, but consultation with a hematologist and obstetrician is essential to ensure safety.

Is Nutrition Important During AML Treatment?

Absolutely. A healthy diet helps:

Reduce infection risk
Maintain weight and energy
Strengthen the body during chemotherapy or targeted therapy

A balanced diet including cooked vegetables, fruits, light proteins, and whole grains helps the body tolerate treatment better.

Can AML Come Back After Remission?

Yes, relapse can occur after initial treatment. Ways to reduce relapse risk include:

Bone marrow or stem cell transplant
Regular follow-up appointments and monitoring

Stages of Acute Myeloid Leukemia (AML)

Unlike many cancers, AML does not have traditional stages because it starts in the bone marrow and spreads rapidly in the blood. Doctors classify AML based on severity and spread:

Based on immature cell (blast) percentage:

< 20% blasts → usually not AML; could be Myelodysplastic Syndrome (MDS)
≥ 20% blasts → confirmed AML

Based on risk factors (Risk Stratification):

Risk Level	Description
Low Risk	Specific chromosomal changes (e.g., t(8;21)), usually better treatment response
Intermediate Risk	Cells with various genetic mutations, moderate response
High Risk	Complex chromosomal changes or high FLT3 mutations, harder to treat

Based on treatment response:

Complete Remission: Significant reduction in blasts and normal blood counts restored
Refractory AML: Immature cells remain after treatment
Relapse: Disease returns after initial remission

Types of AML

AML includes several subtypes, classified by cell appearance under a microscope and genetic/chromosomal changes. Classification helps predict disease behavior and guide treatment.

AML with recurrent genetic abnormalities:

Specific chromosomal changes or gene mutations, e.g., t(8;21)
Acute Promyelocytic Leukemia (APL): t(15;17), requires different treatment with excellent outcomes

AML associated with Myelodysplastic Syndrome (MDS):

Occurs in patients with previous MDS, which prevents healthy blood cell production

Therapy-related AML:

Appears years after treatment for another cancer using chemotherapy or radiation
Often considered secondary AML, more challenging to treat

AML not otherwise specified:

Subtypes not in the above groups, classified by the type of normal blood cells they resemble:
- Monocytic AML
- Myelomonocytic AML

Causes of AML

AML arises from multiple genetic, environmental, and medical factors affecting blood cells and bone marrow:

Genetic and chromosomal changes:

Mutations in blood cell genes causing rapid, abnormal division
Examples: deletions or breaks in chromosomes 5 or 7, FLT3 or NPM1 mutations

Exposure to radiation or chemicals:

High or long-term exposure to radiation or chemicals like benzene or pesticides increases risk

Previous blood disorders or bone marrow problems:

MDS, aplastic anemia, or certain chronic leukemias can progress to AML

Age and gender:

Most AML patients are over 60
Slightly higher incidence in men

Genetic syndromes:

Down syndrome or rare chromosomal/immunity disorders increase risk

Other factors:

Smoking and prior chemotherapy drugs may contribute

AML Symptoms

Symptoms occur due to a lack of normal blood cells or accumulation of abnormal cells in the marrow and blood:

Anemia (low red blood cells): fatigue, pallor, shortness of breath, palpitations
Low platelets: easy bruising, minor bleeding, small red skin spots (petechiae)
Low white blood cells: frequent or hard-to-treat infections, recurrent fever
Other general symptoms: loss of appetite, weight loss, night sweats, bone/joint pain, enlarged spleen or liver

AML Diagnosis

Diagnosis requires precise tests to confirm leukemia, determine subtype, and assess spread. AML grows rapidly, so urgent testing is needed:

Physical exam & blood tests: CBC may reveal abnormal red, white, or platelet counts and immature cells (blasts)
Bone marrow aspiration & biopsy: most accurate test; confirms AML, identifies subtype, and detects genetic changes
Cytogenetic & molecular tests: detect mutations such as FLT3, IDH1/IDH2, NPM1
Lumbar puncture (spinal tap): if CNS involvement is suspected
Imaging tests: CT or PET scans to check for spread

AML Prognosis & Survival

Predictive factors: age, overall health, genetic mutations, response to initial chemotherapy

Under 60 years: ~40% 5-year survival
Favorable genetic mutations: >70% in some subtypes
Children/adolescents: 60–70% survival in many studies

Complete remission significantly improves survival, while relapse or refractory disease reduces it. Bone marrow transplantation can improve outcomes.

AML Treatment

1. Chemotherapy

Induction phase: kill as many leukemia cells as possible (Cytarabine + Anthracyclines)
Consolidation phase: eliminate remaining cells and prevent relapse