This page helps families understand the science of blood disorders in plain language, prepare for visits, recognize urgent warning signs, and organize everyday care.
Anemia and hemoglobin disorders affect oxygen delivery, energy, growth, and organ stress.
Neutropenia changes how quickly fever and infection symptoms need attention.
Low platelets or platelet dysfunction can cause petechiae, bruising, nosebleeds, or heavy periods.
Hemophilia, VWD, and rare factor disorders need procedure and injury plans.
Start here
A new diagnosis can feel overwhelming. Focus on safety, clarity, and your next step.
Ask for the exact diagnosis or working diagnosis, the key abnormal labs, and whether anything is urgent today.
Know when to call, where to go after hours, and what symptoms require emergency care.
Keep labs, diagnosis letters, medication lists, factor/sickle cell plans, transfusion records, and school forms in one folder.
Discuss school, sports, travel, vaccines, dental care, and medicines to avoid with your team.
Urgent care guide
When in doubt, call your child’s hematology team or seek emergency care. If symptoms are severe, use emergency medical services.
Lab decoder
Your child’s clinician interprets results based on age, symptoms, and trend. These definitions help you follow the conversation.
| Test / term | Plain-language meaning | Often discussed in |
|---|---|---|
| Hemoglobin | The oxygen-carrying protein inside red blood cells. Low hemoglobin is anemia. | Iron deficiency, thalassemia, sickle cell disease, HUS/TTP |
| MCV | Average red blood cell size. Low MCV often means small cells, commonly from iron deficiency or thalassemia trait. | Microcytic anemia |
| Ferritin | A marker of iron stores; it can rise with inflammation, so context matters. | Iron deficiency, heavy menstrual bleeding |
| Reticulocyte count | Young red blood cells. Helps show whether bone marrow is responding. | Anemia, hemolysis, aplastic crisis |
| Platelets | Blood cells that help form clots. Low platelets can cause bruising and bleeding. | ITP, TTP, HUS, marrow disorders |
| ANC | Absolute neutrophil count; estimates infection-fighting neutrophils. | Neutropenia, chemotherapy care |
| PT / aPTT | Screening tests for parts of the clotting system. | Hemophilia, rare factor disorders, liver disease, anticoagulants |
| VWF antigen/activity | Tests for von Willebrand factor amount and function. | Von Willebrand disease |
| LDH / bilirubin / haptoglobin | Markers that may suggest red blood cells are breaking down. | Sickle cell disease, TTP, HUS, hemolytic anemia |
| Hemoglobin electrophoresis/HPLC | Tests that identify types of hemoglobin. | Sickle cell disease, thalassemia |
Appointment checklist
Everyday life
Share emergency instructions, medication permissions, activity restrictions, hydration/bathroom needs, and who to call.
Most children benefit from safe activity. Restrictions depend on platelet count, bleeding severity, joint health, spleen size, and treatment plan.
Carry diagnosis letters, medications, emergency plan, insurance details, and local hospital information.
Home readiness
Ask your hematology team what your child needs. Many families keep gauze, nasal pressure clips, prescribed antifibrinolytic/factor instructions, medical alert information, and emergency contacts together.
