What is genital and scalp psoriasis?

Genital: scaly or non-scaly erythematous lesions aggravated during sexual intercourse. Scalp: Psoriatic lesions affecting the skin or the scalp are similar and characterised by well-defined red, silver white scaly plates Scalp involvement may affect as many as 90% of psoriatic patients Scalp psoriasis is highly visible and causes significant psychosocial disability Psoriatic lesions usually advance just beyond the scalp margin, but sometimes extend onto the face and behind the ears Rarely causes hair loss but can engain the hair follicles causing it Anterior head the lesions are inflammatory and produce red crown discretely flaking