Psoriasis is a non-contagious, inflammatory skin condition. The severity of psoriasis varies from person to person. Some cases are so mild that it can go undetected. The cause for psoriasis is related to the rapid growth of skin cells, and it has been linked with the immune system. Psoriasis can appear on any part of the body, especially on the scalp and the nails, depending on the type. Treatment ranges from topical to systemic. There are five major types of psoriasis, each with different signs and symptoms:
- Plaque Psoriasis: This is the most common type. It frequently appears on elbows and knees as patches of raised, reddish skin covered by silvery-white scales.
- Guttate Psoriasis: This strain typically starts after a sore throat and is known to clear up on its own in weeks. It predominantly affects children and young adults appearing as small, red spots.
- Pustular Psoriasis: Characterized by white pustules surrounded by red skin, pustular psoriasis usually begins in the palms of the hands and soles of the feet, but may spread.
- Inverse Psoriasis: Smooth, red lesions form in skin folds such as in the armpit and around the genital and buttock when this type occurs.
- Erythrodermic Psoriasis: This life-threatening type causes widespread redness with severe itching and pain