The Fallopian tubes or uterine tubes are a pair of narrow tubes where the fusion between the egg and the sperm occurs in humans, which results in an embryo.
The blockage of both tubes prevents fertilization, and therefore pregnancy.
By Sara Salgado BSc, MSc (embryologist), Zaira Salvador BSc, MSc (embryologist), Dra. Zulyma Blanco Maldonado (fertility specialist) and Sandra Fernández BA, MA (fertility counselor).
Last Update: 05/29/2017