Urticaria
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Urticaria
Integumentary system
Pigmented skin disorders
Vitiligo
Albinism
Acneiform skin disorders
Acne vulgaris
Folliculitis
Rosacea
Hidradenitis suppurativa
Papulosquamous and inflammatory skin disorders
Contact dermatitis
Atopic dermatitis
Lichen planus
Pityriasis rosea
Psoriasis
Seborrhoeic dermatitis
Urticaria
Keratotic skin disorders
Actinic keratosis
Vesiculobullous skin disorders
Epidermolysis bullosa
Bullous pemphigoid
Pemphigus vulgaris
Desquamating skin disorders
Erythema multiforme
Stevens-Johnson syndrome
Skin integrity disorders
Pressure ulcer
Sunburn
Burns
Frostbite
Skin infections
Cellulitis
Erysipelas
Impetigo
Necrotizing fasciitis
Human papillomavirus
Varicella zoster virus
Poxvirus (Smallpox and Molluscum contagiosum)
Coxsackievirus
Herpes simplex virus
Candida
Malassezia (Tinea versicolor and Seborrhoeic dermatitis)
Pediculus humanus and Phthirus pubis (Lice)
Sarcoptes scabiei (Scabies)
Human herpesvirus 6 (Roseola)
Parvovirus B19
Varicella zoster virus
Measles virus
Rubella virus
Skin neoplasms
Vascular tumors
Human herpesvirus 8 (Kaposi sarcoma)
Angiosarcomas
Skin cancer
Hair and nail disorders
Alopecia areata
Telogen effluvium
Onychomycosis
Integumentary system pathology review
Pigmentation skin disorders: Pathology review
Acneiform skin disorders: Pathology review
Papulosquamous and inflammatory skin disorders: Pathology review
Vesiculobullous and desquamating skin disorders: Pathology review
Skin cancer: Pathology review
Bacterial and viral skin infections: Pathology review
Viral exanthems of childhood: Pathology review
Assessments
Urticaria
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Urticaria
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USMLE® Step 1 style questions USMLE
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Reproduced from: Wikimedia Commons
Which of the following is the most likely pathophysiology of this patient’s condition?
Memory Anchors and Partner Content
External References
First Aid
2022
2021
2020
2019
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2016
Pruritus
urticaria p. 489
Urticaria p. 487, 489
ethosuxamide p. 565
scombroid poisoning p. 248
serum sickness p. 111
sulfa drug allergies p. 253
as type I hypersensitivity p. 111
Wheal
urticaria p. 487
Summary
Urticaria, commonly referred to as hives, is a kind of skin rash notable for pale red, raised, itchy bumps, which can cause a burning or stinging sensation. Lesions are frequently caused by allergic reactions; however, there are many nonallergic causes, such as autoimmune disorders like thyroid disease.
Most cases of hives lasting less than six weeks (acute urticaria) are the result of an allergic trigger. Chronic urticaria (hives lasting longer than six weeks) is rarely due to an allergy. Treatment for urticaria typically involves identifying and avoiding triggers, as well as taking medication to relieve symptoms. Antihistamines are often prescribed to block the release of histamine and reduce itching and swelling. In severe cases, oral or injectable corticosteroids may be prescribed.
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