Hegar's sign is a non-sensitive indication of pregnancy in women — its absence does not exclude pregnancy. It pertains to the features of the cervix and the uterine isthmus. It is demonstrated as a softening in the consistency of the uterus, and the possibility to compress the connection between the cervix and the fundus. The uterine fundus is palpable.
The sign is usually present from 4–6 weeks until the 12th week of pregnancy. Hegar's sign is more difficult to recognize in multiparous women.