What causes Psoriasis?

While the exact cause of psoriasis is not known, the immune system and a person’s genetics are both involved.

Normally when your skin grows, the cells move up from lower layers in the skin, up towards the top layer of skin that you see. This normally takes about 28 days, but in psoriasis the whole process is sped up and takes about four days. This means the cells are not fully formed when they reach the surface, causing a build-up of dead skin cells, which look like silvery scales. There is also an increase in blood flowing to the surface of your skin. This causes redness and the skin to thicken into raised red, scaly, plaques.

Psoriasis is not contagious and cannot be caught from another person

The information provided on this website is not a substitute for professional medical care. If you have any concerns about your health or medicine, you should consult your healthcare specialist or general practitioner.

If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in the patient information leaflet. You can also report side effects directly in the UK via the Yellow Card Scheme website: https://yellowcard.mhra.gov.uk/ or via the the MHRA Yellow Card App in the Google Play or Apple App Store. In Ireland please report via the HPRA at https://www.hpra.ie/homepage/about-us/report-an-issue.

You can also report adverse events to UCB at UCBCares.UK@ucb.com or UCBCares.IE@ucb.com.

IE-DA-2300027. September 2023

Images used are not of real patients.