Which condition could lead to retained placenta?

Retained placenta is a condition that occurs when the placenta is not delivered within a reasonable time frame after childbirth. Among the choices provided, retained cotyledon is specifically associated with this condition. A retained cotyledon refers to the failure to deliver part of the placenta, which can occur when a small piece of placental tissue (the cotyledon) remains retained in the uterus after delivery. This can lead to complications such as postpartum hemorrhage and infection, necessitating further medical intervention to remove the retained tissue.

In contrast, while uterine fibroids and endometriosis can influence childbirth and the reproductive system, they do not directly result in retained placenta. Uterine fibroids can alter the shape and size of the uterus, which may pose risks during pregnancy and labor, but they are not known to cause retention of placental tissue. Endometriosis involves the presence of endometrial-like tissue outside the uterus and can lead to complications and infertility issues but is unrelated to the process of placenta delivery. Cervical incompetence refers to a weakness of the cervix that can lead to premature labor or miscarriage but does not affect the retention of the placenta post-delivery.

Therefore, the most direct link to retained placenta among the options is retained