Close
Open
Share on Facebook
Twitter
Google+
Email
 
Notice: Users may be experiencing issues with displaying some pages on stanfordhealthcare.org. We are working closely with our technical teams to resolve the issue as quickly as possible. Thank you for your patience.
 

COVID-19 Updates:      COVID-19 Resources »      Vaccine Update »      Updated Visitor Policy »      What We're Doing to Keep You Safe »

Menu
Search
Menu
Search
  • Doctors, Clinics & Locations, Conditions & Treatments
  • Patients & Visitors
  • MyHealth
  • Billing
  • Insurance
  • Medical Records
  • Support Groups
  • Financial Assistance
  • COVID-19 Resource Center
  • Locations and Parking
  • Visitor Policy
  • Hospital Check-in
  • International Patients
  • Contact Us
View All Information for Patients & Visitors »
We are available to assist you 24/7.
650-498-3333
GuestServices@stanfordhealthcare.org


View the changes to our visitor policy »

 

View information for Guest Services »

New to MyHealth?

Manage Your Care From Anywhere.

Access your health information from any device with MyHealth.  You can message your clinic, view lab results, schedule an appointment, and pay your bill.

ALREADY HAVE AN ACCESS CODE?

Activate Account

DON'T HAVE AN ACCESS CODE?

Create a New Account

NEED MORE DETAILS?

Learn More about MyHealth »

MyHealth for Mobile

Get the iPhone MyHealth app »
Get the Android MyHealth app »

WELCOME BACK

Forgot Username or Password?
Need Help?

Clear

Hemophilia Types

  • About
  • About
Overview
Types
Symptoms
Causes
Diagnosis
Treatments
Overview
Types
Symptoms
Causes
Diagnosis
Treatments

Types of Hemophilia

There are many factors in the blood that are involved in the forming of clots to stop bleeding. A person with hemophilia is missing, or has a low supply of, one of the factors needed in order for the blood to clot. Two common factors that affect blood clotting are factor VIII and factor IX.

Hemophilia is classified by its level of severity. Hemophilia may be mild, moderate, or severe, depending on the level of the blood clotting factors in the blood.

The three main forms of hemophilia include the following:

  • Hemophilia A: Caused by a lack of the blood clotting factor VIII; approximately 85% of hemophiliacs have type A disease.
  • Hemophilia B: Caused by a deficiency of factor IX.
  • Hemophilia C: Some doctors use this term to refer to a lack of clotting factor XI
  • Von Willebrand disease: A part of the factor VIII molecule known as von Willebrand factor or ristocetin cofactor is reduced. The von Willebrand factor involves helping the platelets (blood cells that control bleeding) attach to the lining of a vein or artery. This missing factor results in prolonged bleeding time because the platelets are unable to attach to the wall of the vessel and form a plug to stop the bleeding. This disease is similar to hemophilia, but is not usually called by this name. It is more common and usually milder than hemophilia.
Previous Section Next Section

INTERESTED IN AN ONLINE SECOND OPINION?

The Stanford Medicine Online Second Opinion program offers you easy access to our world-class doctors. It’s all done remotely and you don’t have to visit our hospital or one of our clinics for this service. You don’t even need to leave home!

Visit our online second opinion page to learn more.

Clinics for Types

  • Stanford Cancer Center Palo Alto
    650-498-6000
  • Hematology Program
    650-498-6000
  • Find a Doctor
  • Find Conditions & Treatments
  • Find a Stanford clinic
  • For Patients & Visitors
  • Billing
  • Insurance
  • Hospital Check-in
  • Contact Us
  • Get a Second Opinion
  • COVID-19 Resource Center
  • Make a Gift
  • About Us
  • Quality & Safety
  • Annual Report
  • Stanford Health Care Now
  • For Healthcare Professionals
  • Referring Physicians
  • Nursing
  • Allied Healthcare Professionals
First Responders
  • Newsroom
  • Careers
  • Volunteering
  • Vendors
  • University HealthCare Alliance
  • Stanford Health Care – ValleyCare
  • Stanford Medicine
  • Stanford Children's Health
  • Stanford University
  • Legal
  • Privacy
  • Code of Conduct
  • |   Notice of Nondiscrimination     ©2020 Stanford Health Care. All Rights Reserved
Home
Close
Doctors
Clinics & Locations
Conditions & Treatments
Clinical Trials
MyHealth Login

Patients & Visitors
Billing
Insurance
Financial Assistance
Medical Records
Contact Us
Get a Second Opinion
COVID-19 Resource Center
Healthcare Professionals
Referring Physicians
Nursing
Allied Healthcare
About Us
Quality & Safety
Careers
Newsroom
Make a Donation
Stanford Health Care Now
Close