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Hemophilia A

An atlas of F8-related factor VIII deficiency, bleeding risk, inhibitors, and prophylactic treatment.

hemophilia A · factor VIII deficiency

MONDO:0010602Public QA completeSource-bound · 4

Disease at a glance

Start with the essentials, then explore the patient and research views.

Public revision · d813eae2cca8

Disease class
Hemophilia A is a factor VIII deficiency bleeding disorder.
Core mechanism
It is an X-linked disorder caused by F8 variants.
Genes or cause
Both females and males can have symptoms.
Typical features
Joint, muscle, and postsurgical bleeding can occur.
Variability
Factor activity helps classify severity.
Diagnosis
Coagulation and factor VIII assays establish diagnosis.
Management
F8 testing complements diagnosis and family counseling.
Treatment and research
Inhibitors are tested regularly and when indicated.
Reading evidence
Factor VIII replacement treats and prevents bleeding.
Key caution
Emicizumab is a non-factor prophylaxis option.

For patients and families

A structured guide for understanding the disease and preparing for clinical conversations.

At a glance

Hemophilia A is a factor VIII deficiency bleeding disorder.

Joint, muscle, and postsurgical bleeding can occur.

How the disease works

It is an X-linked disorder caused by F8 variants.

Both females and males can have symptoms.

Why experiences vary

Factor activity helps classify severity.

Diagnosis and management

Coagulation and factor VIII assays establish diagnosis.

Treatment status

F8 testing complements diagnosis and family counseling.

Inhibitors are tested regularly and when indicated.

Reading clinical trials

Gene therapy is considered only for eligible adults.

Topics for a clinical visit

Bleeding plans, medicines, and surgery require specialist coordination.

Medical notice

This material is for disease education and is not a personal diagnosis or treatment instruction.

Evidence and sources

A trial registry status does not establish efficacy or regulatory approval.