To help you decide whether or not your skin irritation is something that ought to be looked at by your doctor, we’ve compiled a list of classic psoriasis symptoms. This list will give you a better idea of what to watch for. Click on the checkboxes to mark which conditions match your skin symptoms. If your skin condition is described here, print this page out and bring it to your physician or dermatologist to help you discuss your treatment options.  Skin with Red Patches or Scales People with psoriasis often report large, painful areas of red skin and/or whitish silver scales that may bleed if they are scraped. Some people have patches that have a more pimply appearance, and others may have dark-colored areas that look like a burn. The skin buildups are most commonly found on the back, elbows, knees, and/or scalp, and they may feel a bit itchy. Others may experience a burning sensation around the areas affected and/or cracked skin.  Changes or Discoloration of Nailbeds Be on the lookout for transformations that may occur on your hands and feet. About half of people with psoriasis notice a distinct difference in appearance of their fingernails and/or toenails. They often become pitted (small holes) or discolored. Sometimes the beds change in shape or appear to be lifted or raised off the skin. (See what else your nails could be trying to tell you about your health.) Red, Tender, Blistered Skin Those with psoriasis may notice their epidermis becoming increasingly more red and tender until they eventually blister. These blisters may appear on several different areas of the body and can become filled with pus.  Inflamed or Red Areas in Folds of the Skin Found in areas of the body with particularly delicate skin (like armpits, breast, and the groin region), the skin may have a smooth, dry surface that appears to be red or inflamed. This type of psoriasis often does not have any scaling involved, but it may be more difficult to treat due to the sensitivity of the area. Rubbing or sweating may further irritate the area, and skin folds are more prone to yeast and/or fungal infections. MORE: 11 Ways To Deal With Psoriasis