Implantation of the fertilized ovum outside the uterine cavity is called?

• A. Miscarriage
• B. Ectopic pregnancy
• C. Placenta previa
• D. Intrauterine pregnancy

Answer: (B)

Implantation of the fertilized ovum outside the uterine cavity is called ectopic pregnancy. This term describes any pregnancy where the embryo implants somewhere other than the inside of the uterus, most often in the fallopian tube. It’s the correct choice because it directly names the abnormal location of implantation. In contrast, a miscarriage refers to a pregnancy loss that occurs within the uterus, a placenta previa involves the placenta covering the cervical opening, and an intrauterine pregnancy means implantation occurred normally inside the uterus. Ectopic pregnancy is a potential medical emergency due to the risk of rupture and bleeding if it grows without being detected.