Plaque psoriasis is an inflammatory dermatological disorder. It is the most common form of psoriasis affecting 70-80% of the people suffering from Psoriasis. It affects the outer surface of the skin and also impairs the functioning of internal organs. Plaque Psoriasis is an autoimmune disorder result from the hyperactivity of the immune cells. The lymphocytic cells (Th1 and Th2 cells) t-helper cells mistakes their own body cells as foreign invaders and initiate a defensive mechanism against them. The cells undergo hyper-proliferation of the layers of the skin cells, as a result, it produces new cells at a faster rate than the usual. These cells accumulate at the surface of the skin called the epidermis and form plaques. Plaques are dry, scaly, silvery, red patches (lesions) on the skin that causes severe irritation and itching. Early treatment provides a complete cure to the patient but there is always a risk of relapse or remission. For instance, if the patient is battling any infection or fever, the immune system fights against the infection and at the same time causes a flare-up of plaque psoriasis by over-activity of the immune cells.

Areas Involved:

Plaque psoriasis affects the body regions like scalp, elbow, knees, trunk, hands, and legs. Generally, it affects in a symmetrical manner, plaques appear o the sides of the body. If it affects the right-hand fingers then it will also appear on the left-hand fingers too. It is developed along with nail psoriasis that causes pitting, nail discoloration, and separation from the nail bed.


These acts as a triggering factor for the development of plaque psoriasis. The condition gets worsen upon the consumption of alcohol and tobacco. Smoking increases the chances of developing psoriasis and also makes the condition worse. Stress also plays a vital role in the development of plaque psoriasis. Though it is not directly related but has the link to the occurrence of Psoriasis. Infections: if the body is battling infection the defensive mechanism will over-react and aggravates the skin condition. Weather conditions: cold and dry weather is not favorable to skin diseases. Abrupt withdrawal of corticosteroids cause a flare-up Medications like lithium, anti-malarial drugs, anti-hypertensive drugs, etc.


Once you notice these new patches on the skin, immediately seek doctor’s advice. No specific test or device is needed. The physical assessment helps in diagnosis. A skin biopsy will be ordered if needed. If you have any problem regarding Pigmentation CLICK HERE

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