Your doctor can usually tell if you have psoriasis without a biopsy-- a procedure that collects skin cells and checks them under a microscope. But there are a few rare cases where you might need to ...

Brendan Camp, MD, FAAD, is a double board-certified dermatologist. A dermatologist may use a physical exam and medical history to diagnose psoriasis. Skin biopsies help distinguish psoriasis from ...

Reference Article: Overview of the causes, symptoms and treatment for psoriasis. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Psoriasis is a ...

Psoriasis has many imitators, but one that comes very close is seborrheic dermatitis. That’s because both conditions can cause red, scaly, inflamed patches on your skin. To tell the two apart, you’ll ...

Medically reviewed by Casey Gallagher, MD Key Takeaways Dry skin is the most common cause of cracked fingertips. Eczema, psoriasis, and fungal infections can cause dry, cracked skin on the fingers. If ...