The rash associated with pregnancy urticaria varies widely, including hive-like welts, papules, patches, or small blisters. It typically begins around the navel, spreading along stretch marks toward the chest, thighs, calves, and upper limbs, causing intense itching. However, the rash usually improves within one week postpartum and rarely recurs in subsequent pregnancies.
Six Characteristics of Pregnancy Urticaria
1. Pregnancy urticaria and plaques typically occur during the third trimester.
2. More common in mothers carrying twins and first-time mothers.
3. Mothers often develop itchy, red swellings and large areas of hive-like rash on the abdomen.
4. The rash typically begins around stretch marks on the abdomen and spreads to the thighs, buttocks, and arms.
5. The rash usually resolves naturally within days after delivery, along with the itching.
6. It rarely recurs in subsequent pregnancies.