MC cause of abortion in first trimester is, defect in:: (A) Placenta, (B) Uterus, (C) Embryo, (D) Ovarian
Answer is C. Ans. is c, i.e. EmbryoRef. Dutta Obs. 7/e, p 159, 160; Williams Gynae 1/e, p 138As explained earlier most common cause of abortion in first trimester are chromosomal abnormalities involving the zygote or embryo.