Which condition occurs during pregnancy and typically disappears after childbirth?

• A. Type 1 Diabetes
• B. Gestational Diabetes Mellitus
• C. Cushing's syndrome
• D. Addison's disease

Answer: (B)

During pregnancy, hormonal changes cause insulin resistance, which can lead to glucose intolerance that first appears during gestation. This condition is gestational diabetes mellitus, and it usually develops in the second trimester and then resolves after the baby is born because the placental influence and pregnancy hormones drop, restoring normal insulin sensitivity.

The other options don’t fit this pattern. Type 1 diabetes is an autoimmune condition that typically exists before or early in pregnancy and does not inherently resolve after childbirth. Cushing’s syndrome involves excessive cortisol and generally persists unless treated. Addison’s disease is adrenal insufficiency and is not something that simply goes away after delivery.