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Pruritic Urticarial Papules and Plaques of Pregnancy
Aka: Pruritic Urticarial Papules and Plaques of Pregnancy, Polymorphic Eruption of Pregnancy, PUPPP
- See Also
- Pruritus in Pregnancy
- Pruritus
- Epidemiology
- Occurs more commonly in primigravidas
- More common in third trimester
- Incidence: 0.4 to 0.6% of pregnancies
- Pathophysiology
- May be related to abdominal distention
- Risk Factors
- Increased maternal weight gain
- Fetal Macrosomia
- Twin Gestation
- Signs: Locations
- Onset over Abdomen in 90% of cases (especially striae)
- Symmetric spread to thigh and buttock
- May also involve upper arm, back, and hands
- Does not involve face or periumbilical area
- Signs: Appearance
- Red 1-2 mm Papule with surrounding pale halo
- Lesions may coalesce into Urticarial Plaques
- Vesicles may also be seen
- Differential Diagnosis
- See Pruritus in Pregnancy
- See Pruritus Causes
- Erythema Multiforme (target lesion)
- Herpes Gestationis
- Pemphigoid Gestationis
- Management
- See Nonspecific Management of Pruritus
- Cool compresses
- Oatmeal Baths (e.g. Aveeno)
- Antihistamines (e.g. Hydroxyzine)
- Refractory cases of intolerable itching
- Topical Corticosteroids (Group V)
- Consider short course of Prednisone 40 mg PO qd
- Course
- Severity decreases within one week of onset
- Rash and symptoms persist on average 6 weeks
- Resolves with delivery
- References
- Gabbe (2002) Obstetrics, Churchill Livingstone, p. 1288
- Habif (1996) Dermatology, Mosby, p. 140