What is the name of the sign characterized by a bluish cervix in early pregnancy?

Chadwick's sign refers to the bluish discoloration of the cervix, vagina, and labia, which occurs due to increased blood flow and vascularity in the early stages of pregnancy. This sign can typically be observed around the sixth week of gestation and is attributed to the hormonal changes that lead to enhanced circulation in the pelvic region. Clinicians may use Chadwick's sign as an observable indicator of pregnancy, along with other signs and symptoms.

Cullen's sign, on the other hand, is associated with intra-abdominal bleeding and presents as a bluish discoloration around the umbilicus, while Hegar's sign refers to the softening of the lower uterine segment and Goodell's sign involves the softening of the cervix itself, neither of which specifically describe the bluish color of the cervix in early pregnancy. Chadwick’s sign remains significant in obstetric assessments, as it helps in the preliminary recognition of pregnancy.