What is the expected diameter of the contracted uterus on palpation immediately after a singleton birth?

The expected diameter of the contracted uterus immediately after a singleton birth is typically around 10 to 15 cm. When the uterus contracts after delivery, it shrinks significantly as it returns to a non-pregnant state. This reduction is a normal physiological response and is part of the uterine involution process.

In the immediate postpartum period following a singleton birth, palpation of the fundus (the top part of the uterus) usually reveals a diameter within this range. This contraction is essential for preventing postpartum hemorrhage, as a well-contracted uterus helps to compress the uterine blood vessels effectively.

Overall, recognizing the expected size of the uterus immediately postpartum is crucial for healthcare providers to assess uterine tone and overall postpartum well-being.