For the most part, psoriasis is red or pinkish patches of thick, raised, and/or dry skin. The most common areas affected are the scalp, elbows, and knees. Of courses, psoriasis is not picky, and it will gladly affect any area of the body it sees fit. Psoriasis is more likely to appear where there skin is injured. Areas of trauma, constant rubbing or scratching, and abrasions or scratches can cause flare-ups.

Psoriasis can look different depending on each individual person. There can be small bumps or large areas of patchy, raised skin. The area can also have red patches or areas of flaky skin that is easily wiped off. If the small areas of dry skin or picked at or scratched they may start to bleed; this is another sign of psoriasis.

Psoriasis in the genital areas is common too and the area should be dealt with gently. Keep the area clean and don't pick or scratch at the skin. If the psoriasis shows up in moist areas like the belly button, genitals or between the buttocks, the patches will appear to be simply flat, red patches of skin. These areas can then make the psoriasis appear to be some other infection and overlooked.

Psoriasis can also affect the skin under or around the nails. These will appear as small, white spots on the nail or as large yellowish-brown areas in the nail bed. This type of psoriasis can cause the nails to crack or break easily and, in some cases, cause the nails to fall off.