My WebMD Sign In

Please enter email address

Enter your password

Keep me signed in on this computer

Show more Information

If you select "Keep me signed in on this computer", every time you visit WebMD.com you won't have to type your email address and password. This means that a cookie will stay on your computer even when you exit or close your browser which may reduce your levels of privacy and security. You should never select this option if you're using a publicly accessible computer, or if you're sharing a computer with others. Even if you select this option there are some features of our site that still require you to log in for privacy reasons.

Forget your password? Having trouble signing in?

Why should I
sign up for WebMD?

With a WebMD Account you can:

Track your way to weight loss success
Manage your family's vaccinations
Join the conversation

See more benefits Sign Up

Why WebMD?

My WebMD

Show Menu

Facebook Twitter Pinterest

WebMD Home

Skin Problems & Treatments Health Center

Psoriasis Health Center

Email a Friend

Print Article

Psoriasis Health Center

Tools & Resources

Font Size

Psoriasis: Test Your Knowledge

Psoriasis affects up to 7.5 million Americans, according to the National Institutes of Health. Psoriasis is more common in adults than children and affects males and females equally.

Psoriasis affects:

Recommended Related to Psoriasis

Choosing a Treatment for Psoriasis

There isn't a cure for psoriasis, and there isn't a perfect treatment either. Treatment for psoriasis can be demanding and cause side effects. Before treatment, you should make sure that your doctor is comfortable prescribing systemic and biologic medications when they're necessary, advises Bruce E. Strober, MD, PhD, co-director of the Psoriasis and Psoriatic Arthritis Center at New York University. He says that some doctors are reluctant to ever use these powerful drugs because of their side effects...

Read the Choosing a Treatment for Psoriasis article > >

2% to 3% of people throughout the world
About 2.2% of people in the United States
Some cultures more than others. Worldwide, psoriasis is most common in Scandinavia and other parts of northern Europe. It appears to be far less common among Asians and is rare in Native Americans, according to the American Academy of Dermatology.

WebMD Medical Reference

View Article Sources Sources