Causes Skin Disease of Psoriasis and Phototherapy for Psoriasis

If you are looking for the causes of psoriasis skin disease, then you have come to the right place. As you probably already know, psoriasis is a disorder that affects your skin. This skin disorder causes red scaly patches to appear on the surface of your skin. These patches will also feel very itchy and burning at times. To help you understand this disease a little bit better, here is what you need to know about psoriasis and its causes.

Definition of Psoriasis

First of all, let’s discuss the definition of psoriasis. So, what is psoriasis? Well, psoriasis is a skin disease than manifest into red scaly patches on your skin. The skin lesion in psoriasis is pretty unique. If you have psoriasis, these skin lesions will appear on your body. But certain parts of your body are more prone to psoriasis, such as your elbows, knees, and scalp.

The skin lesion in psoriasis involves red patches with thick scales on them. These white thick scales create a dry appearance in psoriasis. Psoriasis can be very debilitating because the skin lesions will itch. You might even feel soreness in those lesions.

Causes of Psoriasis

Now that you know the definition of psoriasis, let’s talk about the causes of psoriasis skin disease. In reality, the exact cause of psoriasis is unknown to this day. However, this disease greatly involves your immune system. The immune system in psoriasis patients is overly active. This causes inflammation to happen most of the time.

Inflammation is your body causes a lot of things. Inflammation in the skin will trigger the growth of new skin cells. However, if this growth is too fast, skin lesions in psoriasis will appear. Most people replace their skin cells in 10-30 days. But psoriasis patients replace their skin cells every 3-4 days. This causes a buildup of skin cells, which causes the thick scale to appear in psoriasis. This is why phototherapy for psoriasis is quite an effective treatment.

You will be able to find certain risk factors for psoriasis. These risk factors include obesity, smoking, consuming alcohol, infections, and many more. A family history of psoriasis can also contribute to the presence of psoriasis in a person.


Psoriasis is a skin disorder that involves the immune system. You will be able to find so many causes of psoriasis. Hopefully, you already know the causes of psoriasis skin disease with the help of this article.

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