Final answer:
In a bicornuate uterus, the uteri are heart-shaped and can sometimes lead to reproductive issues, although many women with this condition can have successful pregnancies.
Step-by-step explanation:
In a bicornuate uterus, the uteri are heart-shaped due to a congenital malformation where there is a partial or complete failure of the fusion of the Müllerian ducts during fetal development. This results in a uterus that has two separate horns extending to the fallopian tubes. While a normal uterus is pear-shaped and has a single cavity, the bicornuate uterus has a distinct shape that resembles a heart, with a depression at the top.
This condition can sometimes lead to reproductive issues such as difficulty in conceiving, higher risk of pre-term birth, and complications during pregnancy. Despite these potential challenges, many women with a bicornuate uterus can still have successful pregnancies with close medical monitoring and care.