Health problem, skin diseases. Young woman scratching her itchy back with allergy rash

Often, your doctor will help determine the severity of your psoriasis. They do this by measuring the surface area your psoriasis covers your body. The more surface area that psoriasis has control over your body, the more severe your level is. Sometimes this method isn’t too effective and instead the Dr. might try to measure other parts of your psoriasis like the number of raised red patches or the hardness/scaling of plaques.


Stage 1: Mild – You usually don’t have to take extra measures to cover up your psoriasis because it only covers less than 3% of your body. Certain corticosteroids and vitamin D treatments might be enough to relieve symptoms. If someone asks what the ‘rash’ on your arm is, you can usually brush it off as an accident

Stage 2: Moderate – Psoriasis affects 3% to 10% of your body. You might try to look for clothing that covers more skin but it’s not a requirement for clothes. Some treatments may work to temporarily relieve symptoms but it never truly goes away for you.

Stage 3: Severe – Your psoriasis covers more than 10% of your body. You probably only look for clothes that cover as much skin as possible. You’ve tried almost every solution to get rid of it. Some people at this stage are very self-conscious about their body and limit their exposure of their skin to other people.