pruritic Dermatosis

The Different Types of Pruritic Dermatosis

Pruritic dermatoses are a group of skin disorders characterized by chronic itching (pruritus) and a rash. The affected skin often has a rough, dry, and scaly texture. Pruritic dermatoses can occur anywhere on the body but are often found on the scalp, face, neck, arms, and legs. There are several types of pruritic dermatoses, including contact dermatitis, atopic dermatitis, psoriasis, lichen planus, scabies, and insect bites.

Contact Dermatitis

Contact dermatitis is an allergic skin reaction that occurs when the skin comes into contact with a particular allergen or irritant. Common triggers include metals, cleaning products, perfumes, and certain fabrics. Symptoms of contact dermatitis include an itchy, red rash, hives, and blisters.

Atopic Dermatitis

Atopic dermatitis, commonly known as eczema, is a chronic skin condition that is characterized by a red, itchy, and often scaly rash. It usually occurs on the face, hands, and feet, but may also spread to other parts of the body. Common triggers for atopic dermatitis include stress, certain fabrics, foods, and changes in temperature or humidity.


Psoriasis is a chronic skin disorder characterized by thick, red, scaly patches on the skin. It typically affects the elbows, knees, and scalp, but can develop anywhere on the body. There is no known cause of psoriasis, but it is believed to be related to an immune system disorder. Stress, certain medications, and a family history of psoriasis may increase the risk of developing the condition.

Lichen Planus

Lichen planus is a condition characterized by an itchy, red rash that typically develops on the arms, legs, and trunk. The rash is usually bumpy and may develop into small blisters or bumps. Lichen planus is not contagious and is not caused by any known virus or bacteria. The exact cause of the condition is unknown, but it’s thought to be related to an immune system disorder.


Scabies is a contagious skin disorder caused by microscopic mites that burrow into the skin. Symptoms of scabies include intense itching, red bumps, and blisters. Scabies is most common in areas of high humidity and is spread by close contact with an infected person. Treatment of scabies typically involves using a medicated cream or lotion, as well as washing all clothing and bedding in hot water.

Insect Bites

Insect bites are a common cause of pruritic dermatoses. Symptoms of an insect bite can vary but typically include a small, red, itchy bump at the site of the bite. Common insects that cause bites include mosquitos, fleas, bedbugs, and ticks. Treatment of an insect bite usually involves the application of an anti-itch cream or lotion. In certain cases, an antifungal or antibiotic cream may be needed.