Health Problems

Hemophilia A Symptoms

Hemophilia A is a condition that affects the ability of the blood to clot, which leads to prolonged bleeding in response to injury. The symptoms may appear as soon as the baby is born, especially if an assisted delivery was required.

Some of the symptoms of this condition include:

  • In the case of assisted delivery using vacuum extraction or forceps, a baby with hemophilia A is usually born with extensive head bruising or hematomas. It may also cause severe bleeding within the brain, which is referred to as intracranial hemorrhage.
  • Early circumcision during the newborn period may also lead to hemophilia being suspected if the circumcision wound fails to stop bleeding.
  • Prolonged bleeding may also become noticeable when a tooth is extracted or a milk tooth is lost.
  • The symptoms of hemophilia range from mild to severe depending on how deficient the blood clotting factors are. However, the majority of cases are severe and sufferers often experience internal bleeding.
  • Bleeding may occur around the joints and muscles leading to pain, stiffness and eventually joint damage.
  • Females with hemophilia A may experience heavy bleeding during their periods as a symptom of the disease.
  • The symptoms people with hemophila experience depend on the severity of their condition which can be divided into the following:

Severe hemophilia

Severe hemophilia A is the most common form of hemophilia, accounting for 60% of all cases, and is defined as a Factor VIII level of less than 1%. People with severe hemophilia A experience at least 20 or more episodes of severe bleeding every year, sometimes in the absence of trauma or injury.

Moderate hemophilia

Moderate hemophilia A is defined as a Factor VIII level of between 1% and 5%, along with less frequent bleeding episodes.

Mild hemophilia

Mild hemophilia is defined as a Factor VIII level of between 5% and 25%, with bleeding episodes only occurring in response to severe trauma or surgery, for example.



Further Reading

  • All Haemophilia A Content
  • What is Hemophilia A?
  • Hemophilia A Diagnosis
  • Hemophilia A Complications
  • Hemophilia A Symptoms

Last Updated: Jan 7, 2021

Written by

Dr. Ananya Mandal

Dr. Ananya Mandal is a doctor by profession, lecturer by vocation and a medical writer by passion. She specialized in Clinical Pharmacology after her bachelor's (MBBS). For her, health communication is not just writing complicated reviews for professionals but making medical knowledge understandable and available to the general public as well.

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