Eczema vs Psoriasis: How to Tell Them Apart

Both cause red, irritated skin, but they look and behave differently, and respond to different treatments.

FeatureEczemaPsoriasis
AppearanceRed, dry, sometimes weepy patchesThick, silvery-white scaly patches
Common locationsInside elbows/knees, face, handsElbows, knees, scalp, lower back
ItchinessOften intenseCan be itchy or sore
CauseAllergy/irritant-related, skin barrier issueAutoimmune — skin cells grow too fast
Typical age of onsetOften starts in childhoodOften starts in adulthood

Eczema (dermatitis)

Usually linked to a compromised skin barrier and allergic triggers — irritants, certain fabrics, or weather can set off a flare, and it commonly runs in families alongside asthma or allergies.

Psoriasis

An autoimmune condition causing skin cells to build up rapidly into thick, scaly patches. It can also be linked to joint pain (psoriatic arthritis) in some people, which eczema does not cause.

When to see a doctor

Widespread patches, joint pain alongside skin symptoms, or skin that becomes infected (increasing warmth, pus, spreading redness) should be evaluated by a doctor for proper diagnosis and treatment.

This comparison is for general awareness only and cannot replace a medical diagnosis. Many conditions share overlapping symptoms — a doctor can examine and test to tell them apart accurately.