Dermatologic Disorders
Systemic Cause
Allergic & Immune
Infectious Itch
100

This dry, cracked skin condition often shows up in winter and worsens with long hot showers or low humidity.

What is xerosis (dry skin)?

100

A blood disease where red cell counts are high and patients get itchy after hot showers.

What is polycythemia vera?

100

Common cause of transient itchy wheals triggered by allergens.

What is urticaria?

100

This sexually transmitted infection causes intense itching and gray-white discharge, often with a foul odor.

What is trichomoniasis?

200

This itchy skin condition often starts in childhood, causes dry and red patches (especially in the elbow and knee creases), and is linked to allergies and asthma.

What is eczema (atopic dermatitis)?

200

This hormonal disorder slows down metabolism and can cause dry, itchy skin, even without a visible rash.

What is Hypothyroidism?

200

This systemic allergic reaction causes itching, swelling, hypotension, and airway compromise.

What is anaphylaxis?

200

This fungal skin infection causes ring-shaped, itchy plaques.

What is tinea corporis (ringworm)?

300

This itchy condition causes thick scales and can affect the elbows, knees, and even the scalp. 

What is psoriasis?

300

This autoimmune liver disease affects middle-aged women and presents with fatigue, pruritus, and positive anti-mitochondrial antibodies.

What is Primary Biliary Cholangitis?

300

An autoimmune disease that causes a net-like red rash and can be associated with photosensitivity and joint pain.  

What is cutaneous lupus erythematosus?

300

This viral infection in children often causes pruritic vesicles on the trunk, face, and scalp.

What is varicella (chickenpox)?