Diseases and Conditions
Psoriasis
Overview
Symptoms
Causes
Risk factors
Complications
Diagnosis
Treatment
Lifestyle and home remedies
Coping and support
Preparing for an appointment
Diagnosis
Your doctor will ask questions about your health and examine your skin, scalp and nails. Your doctor might take a small sample of skin (biopsy) for examination under a microscope. This helps determine the type of psoriasis and rule out other disorders.