Paediatric Haematology

Overview

Paediatric Hematology is a specialised branch of medicine that focuses on blood disorders in infants, children, and adolescents. These conditions may affect red blood cells, white blood cells, platelets, clotting factors, bone marrow, or the immune system.

Children with blood disorders need age-appropriate care because their bodies are still growing and their symptoms may be different from adults. Early diagnosis and specialist treatment can help prevent complications, support normal development, and improve long-term health.

What Is Paediatric Hematology?

Paediatric Hematology deals with the diagnosis, treatment, and long-term management of blood-related conditions in children. A paediatric hematologist evaluates abnormal blood counts, anaemia, bleeding problems, clotting disorders, inherited blood diseases, and blood cancers.

Common conditions treated include:

• Iron deficiency anaemia

• Sickle cell disease

• Thalassemia

• Hemophilia

• Von Willebrand disease

• Immune thrombocytopenia

• Low or high white blood cell counts

• Neutropenia

• Platelet disorders

• Blood clotting disorders

• Bone marrow failure syndromes

• Leukemia, lymphoma, and other blood cancers

The goal is to provide accurate diagnosis, child-friendly treatment, and long-term monitoring when needed.

Causes and Risk Factors

Blood disorders in children may be inherited, acquired, nutritional, immune-related, infection-related, or cancerous.

Common causes and risk factors include:

• Family history of blood disorders

• Iron, vitamin B12, or folate deficiency

• Genetic conditions such as sickle cell disease or thalassemia

• Inherited clotting factor deficiencies

• Immune system problems affecting platelets or blood cells

• Chronic infections or inflammatory diseases

• Bone marrow disorders

• Exposure to certain medicines or toxins

• Previous chemotherapy or radiation

• Premature birth or poor nutrition

• Certain cancers affecting the blood or bone marrow

Some conditions are detected through newborn screening or routine blood tests, while others are diagnosed after symptoms develop.

Symptoms

Symptoms depend on which part of the blood is affected. Some children may have mild symptoms, while others may need urgent care.

Common symptoms include:

• Persistent tiredness or weakness

• Pale skin

• Poor feeding or poor weight gain in infants

• Shortness of breath during activity

• Frequent infections

• Unexplained fever

• Easy bruising

• Frequent nosebleeds or bleeding gums

• Heavy menstrual bleeding in adolescent girls

• Small red or purple spots on the skin

• Swollen lymph nodes

• Bone or joint pain

• Yellowing of the skin or eyes

• Swelling of hands, feet, or abdomen

• Painful episodes in children with sickle cell disease

Parents should seek urgent medical care if a child has severe weakness, difficulty breathing, uncontrolled bleeding, sudden swelling, severe pain, high fever, seizures, or extreme drowsiness.

Diagnosis

Diagnosis begins with a detailed medical history, family history, physical examination, and review of the child’s growth and symptoms. Testing is selected based on the suspected condition.

Common diagnostic tests include:

• Complete blood count with differential

• Peripheral blood smear examination

• Iron studies, vitamin B12, and folate levels

• Reticulocyte count to assess red blood cell production

• Haemoglobin electrophoresis for sickle cell disease or thalassemia

• Coagulation tests such as PT, INR, and aPTT

• Platelet count and platelet function tests

• Tests for immune-related blood disorders

• Bone marrow aspiration and biopsy in selected cases

• Genetic testing when inherited conditions are suspected

• Imaging tests if lymph node, spleen, or organ involvement is suspected

Accurate diagnosis helps guide treatment and avoid unnecessary medicines or procedures.

Treatment Options

Treatment depends on the child’s diagnosis, age, severity of symptoms, and overall health.

Treatment may include:

• Iron, vitamin B12, or folate supplementation

• Dietary guidance for nutritional anaemia

• Antibiotics or preventive medicines for selected infections

• Blood transfusions when required

• Platelet transfusions in selected conditions

• Steroids or immune therapies for immune blood disorders

• Clotting factor replacement for hemophilia

• Medicines to reduce sickle cell complications, such as hydroxyurea when appropriate

• Pain management and hydration support for sickle cell crises

• Chelation therapy for iron overload due to repeated transfusions

• Chemotherapy, targeted therapy, or immunotherapy for blood cancers

• Stem cell transplant in selected severe or inherited blood disorders

Care often includes vaccination guidance, infection prevention, growth monitoring, school support, and counselling for the child and family.

Prevention and Outlook

Not all paediatric blood disorders can be prevented, especially inherited conditions. However, complications can often be reduced through newborn screening, timely vaccination, good nutrition, early treatment of infections, regular follow-up, and genetic counselling for families at risk.

The outlook depends on the specific condition. Many children with anaemia, platelet disorders, bleeding disorders, or inherited blood diseases can live active lives with proper care. Advances in Paediatric Hematology have also improved outcomes for many children with serious blood disorders and blood cancers.

Frequently Asked Questions

1. When should my child see a paediatric hematologist?
   A child should see a paediatric hematologist for persistent anaemia, abnormal blood counts, easy bruising, frequent bleeding, recurrent infections, swollen lymph nodes, suspected sickle cell disease, thalassemia, hemophilia, or blood cancer.

2. Is anaemia common in children?
   Yes. Iron deficiency anaemia is common in children and can usually be treated effectively when diagnosed early.

3. Are blood disorders in children always serious?
   No. Some are mild and treatable, while others may require long-term care. Specialist evaluation helps determine the cause and severity.

4. Can blood disorders be inherited?
   Yes. Conditions such as sickle cell disease, thalassemia, and hemophilia can be inherited. Genetic counselling may be helpful for affected families.

5. What symptoms of leukemia should parents watch for?
   Warning signs may include persistent fever, fatigue, pale skin, easy bruising or bleeding, bone pain, swollen lymph nodes, frequent infections, or unexplained weight loss.

6. Can children with blood disorders go to school and play?
   Many children can attend school, play, and participate in daily activities with proper treatment, precautions, and regular follow-up.