Psoriasis can easily be mistaken for other difficult-to-deal-with skin problems, like a bad infection or rash, eczema, or dermatitis. And because it varies in severity, it can be tricky to figure out what exactly is going on with your skin.

However, psoriasis doesn’t discriminate. You can develop it at any time, regardless of your age or gender, but most people will develop it between 15 and 30 years old. Plus, there are several types of psoriasis, and each one comes with its own unique symptoms.

Here are a few telltale signs to look out for: