There are several types of psoriasis. The most common is plaque psoriasis. If you have psoriasis on your arms, you likely have plaque psoriasis. In fact, it’s responsible for up to 90% of psoriasis cases.1
Plaque psoriasis can develop anywhere on the body, but it’s more common in certain areas, including the elbows. If you have bumps from psoriasis on your elbows, plaque psoriasis is likely to blame. It can appear as dry, raised, thickened bumps or patches that are scaly.2 The areas are often very itchy and even painful.