1 doctor weighed in:

What causes psoriasis?

1 doctor weighed in

In brief: Causes of psoriasis

The exact reasons why you may develop psoriasis aren’t fully understood at present.
It appears that your genes are the most important factor in causing the condition because you're more likely to get psoriasis if other people in your family have it. However, this doesn’t mean you will definitely get the condition.


Environmental factors also play an important role in triggering psoriasis. These include a bacterial throat infection, the effects of certain medicines or stress. For many people, there is no obvious cause.


The genetic and environmental triggers lead to immune cells in your skin setting off inflammation. This causes your skin to start producing new cells faster than usual, leading to psoriatic plaques. What makes your immune system act like this isn't clear.

In brief: Causes of psoriasis

The exact reasons why you may develop psoriasis aren’t fully understood at present.
It appears that your genes are the most important factor in causing the condition because you're more likely to get psoriasis if other people in your family have it. However, this doesn’t mean you will definitely get the condition.


Environmental factors also play an important role in triggering psoriasis. These include a bacterial throat infection, the effects of certain medicines or stress. For many people, there is no obvious cause.


The genetic and environmental triggers lead to immune cells in your skin setting off inflammation. This causes your skin to start producing new cells faster than usual, leading to psoriatic plaques. What makes your immune system act like this isn't clear.
Quality HealthCare Team
Quality HealthCare Team
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