Hemophilia in children is an inherited bleeding disorder that affects the blood’s ability to clot properly, making affected children prone to prolonged and excessive bleeding. Hemophilia occurs when the body lacks specific clotting factors (factor VIII or factor IX), which are essential for normal blood coagulation and stopping bleeding.
Causes
Hemophilia is inherited in an X-linked recessive pattern, which means it predominantly affects boys, as they have only one X chromosome. If this X chromosome carries the defective gene, the disease manifests. Girls have two X chromosomes, so hemophilia may occur only if both X chromosomes carry the defective gene (which is extremely rare), or if one X chromosome is affected and the other cannot sufficiently compensate for the deficiency.
There are two main types of hemophilia:
- Hemophilia A — caused by a deficiency of clotting factor VIII.
- Hemophilia B — caused by a deficiency of clotting factor IX.
Symptoms of hemophilia in children
The main manifestation of hemophilia in children is bleeding that is difficult to stop. In early childhood, the disease may present with the following symptoms:
- Frequent nosebleeds.
- Prolonged or excessive bleeding from cuts and minor injuries.
- Large bruises and hematomas that may appear even without obvious trauma.
- Bleeding into joints (hemarthrosis) — particularly common in children with severe hemophilia; this may lead to pain, swelling, and joint damage.
- Bleeding into muscles, which can cause pain, swelling, and restricted movement.
- Prolonged menstrual bleeding in girls.
- Persistent bleeding after dental procedures.
Diagnosis of hemophilia in children
Diagnosis of hemophilia requires several important tests:
- Blood tests measuring clotting factor levels (factors VIII and IX) — the key tests for identifying the deficiency.
- Prothrombin time (PT) and activated partial thromboplastin time (aPTT) — used to assess overall blood coagulation function.
- Genetic testing — helps confirm the presence of the defective gene in girls and establish the diagnosis in boys.
Treatment of hemophilia in children
Treatment of hemophilia is aimed at replacing the missing clotting factors and preventing or stopping bleeding episodes. Treatment options include:
Replacement therapy — intravenous administration of clotting factor concentrates containing factor VIII (for hemophilia A) or factor IX (for hemophilia B). These medications help prevent bleeding or control it when it occurs.
- Children with severe hemophilia often require regular prophylactic infusions.
- Children with milder forms may receive treatment only in response to injuries or situations with an increased bleeding risk.
Gene therapy — an emerging treatment approach aimed at correcting the defective gene responsible for clotting factor production. While highly promising, gene therapy is still under investigation and is not yet widely available.
Pain management — medications such as paracetamol may be used to relieve pain associated with hemarthrosis. Nonsteroidal anti-inflammatory drugs must be used cautiously, as some can interfere with blood clotting.
Surgical intervention — may be required in certain cases, for example, to manage joint damage or perform joint replacement in children with recurrent hemarthrosis.
Support during injuries and procedures — clotting factor replacement is required before dental procedures, surgeries, or invasive interventions to prevent severe bleeding.
Regular medical follow-up — children with hemophilia should be monitored regularly by pediatric hematologists to ensure timely treatment and prevention of complications.
Prognosis
With timely treatment and proper disease control, children with hemophilia can lead active and fulfilling lives. Many children are able to participate in physical activities and sports when appropriate precautions are taken. Without adequate treatment, however, hemophilia can lead to disability due to joint damage and internal bleeding.
Prevention focuses on regular replacement therapy, injury prevention, and careful planning of medical and dental procedures in accordance with the child’s condition.
Hemophilia in children is a serious condition that requires lifelong medical supervision and treatment. Modern therapeutic approaches significantly improve quality of life and help prevent severe complications. It is essential for parents to work closely with healthcare specialists to ensure early treatment and minimize health risks for their child.
