Question

Chances of failure of contraception are low in which of the following methods?

• A. Lactational amenorrhea
• B. Coitus interruptus
• C. Periodic abstinence
• D. Vasectomy/Tubectomy

Answer 1

The correct option is D Vasectomy/Tubectomy

Vasectomy and tubectomy are surgical techniques used to obstruct the transfer of gametes and hence prevent conception. Vasectomy is the removal of a small mass of the vasa deferentia in human males by making a short cut through the scrotum. Tubectomy is the removal of a small portion of the fallopian tube in human females by making a short cut in the abdomen or vagina. These methods being surgical are highly effective to prevent pregnancy.
During lactational amenorrhea, the chances of conception are very low. This is based on the absence of menstruation during the period of intense lactation soon after the birth of the baby. Although, chances of failure of contraception are very high in this method. Coitus interruptus is the method of withdrawal before ejaculation. Here, the male partner withdraws his penis from the vagina just before the process of ejaculation to prevent insemination from taking place. Periodic abstinence is the method in which the couple abstains from coitus from the 10th to the 17th day of the menstrual cycle, to prevent fertilization, as this period marks the highest chance of ovulation. These methods are less efficient and offer high chances of failure of contraception.