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Fact or Fiction: Psoriasis
by Staff
Do you know why psoriasis develops, who gets it, and how to treat it? Test your knowledge about this medical skin problem with our psoriasis quiz.

Psoriasis is a skin disorder.

  • fact
  • fiction
  • almost fact: Psoriasis is an autoimmune disorder.

Psoriasis is the second most common autoimmune disease in the United States, after multiple sclerosis.

  • fact
  • fiction
  • almost fact: Poriasis is No. 1 on that list.

No one knows what causes psoriasis.

  • fact
  • fiction
  • almost fact: The experts aren't totally sure, but they suspect that psoriasis is most likely caused by childhood allergies.

Our bodies shed around 80,000 skin cells every minute.

  • fact
  • fiction
  • almost fact: It's about half that -- 40,000.

About 10 percent of the population has psoriasis.

  • fact
  • fiction
  • almost fact: The number is more like 20 percent.

There are five kinds of psoriasis.

  • fact
  • fiction
  • almost fact: There are only two types.

The most common kind of psoriasis is inverse psoriasis.

  • fact
  • fiction
  • almost fact: Nope, it's guttate psoriasis.

Guttate psoriasis is a rash of small red bumps that cover the body from the neck down.

  • fact
  • fiction
  • almost fact: The red bumps usually appear only on the torso.

Palmoplantar psoriasis is a form of pustular psoriasis that's linked to alcohol abuse.

  • fact
  • fiction
  • almost fact: It actually appears mostly in smokers.

Erythrodermic psoriasis can lead to congestive heart failure.

  • fact
  • fiction
  • almost fact: Erythrodermic psoriasis is a symptom of kidney failure.

Psoriasis is considered severe when it covers more than half of your body.

  • fact
  • fiction
  • almost fact: If more than 10 percent of your body is affected, your case is severe.

If you have psoriasis, you usually have three basic treatment options.

  • fact
  • fiction
  • almost fact: Each type of psoriasis has its own treatment option.

Therapy with UVA light rays is a common psoriasis treatment.

  • fact
  • fiction
  • almost fact: UVB therapy is actually more prevalent.

Psoriasis is more prevalent in African Americans than it is in Caucasians.

  • fact
  • fiction
  • almost fact: The numbers are actually about even.

Psoriasis is most likely to appear when you're over 50.

  • fact
  • fiction
  • almost fact: It most often pops up in early childhood.

If both parents have psoriasis, their child has a 50-50 chance of having it, too.

  • fact
  • fiction
  • almost fact: The child will definitely have psoriasis.

Sun exposure is the biggest psoriasis trigger.

  • fact
  • fiction
  • almost fact: Diet is actually a bigger factor than sun exposure.

Medications, stress and skin injuries are much more likely to trigger psoriasis.

  • fact
  • fiction
  • almost fact: Yes to medications and skin injuries, but stress isn't an established factor.

If you have severe psoriasis, you have an increased risk of digestive problems.

  • fact
  • fiction
  • almost fact: The problem you might need to worry about is a heart attack.

About 10 to 30 percent of people with psoriasis will develop psoriatic arthritis.

  • fact
  • fiction
  • almost fact: That percentage will develop psoriatic rheumatitis.