Bissoy.com
Doctors Medicines MCQs Q&A

Which factor is responsible for amenorrhea during lactation?

Which factor is responsible for amenorrhea during lactation? Correct Answer Decreased level of FSH

Concept:

  • Lactational Amenorrhea (LAM) is the absence of menstruation in a lactating mother. It is also called secondary amenorrhea.

 Important PointsLAM is when:

  • Menstruation has not started following the delivery of the baby.
  • Mother is only breastfeeding the child.
  • The baby is less than 6 months.

 Key PointsCauses of LAM: Breastfeeding delays the ovarian cycle, hence the menstrual cycle is skipped.

  • Neuroendocrine factors: lactation is primarily controlled by Prolactin which in turn disrupts the release of Gonadotropin-releasing hormone (GnRH) from the hypothalamus, therefore the release of FSH and LH from the anterior pituitary does not occur (Hence option 2 is correct). 
  • Lactation prevents the surge in the release of LH hence preventing ovulation.
  • Also, the release of estrogen in a breastfeeding mother is reduced hence ovulation does not occur.

Related Questions

Which among the following syndrome comprises postpartum galactorrhea, amenorrhea, and “utero-ovarian atrophy” in patients not nursing?
Primary amenorrhea in a girl with normal external genitalia indicates
Primary amenorrhea is caused by
Primary amenorrhea may occur in
Causes of secondary amenorrhea are
What is lactational amenorrhea?
Which antibody is secreted by the mother during the initial days of lactation to protect the infant?
Drugs that can be used safely during pregnancy and lactation is/are
Mother’s milk during lactation is rich in _________
A pipe, working at full speed, can fill an empty cistern in 1 hour. However, during the first hour it worked at one-twenty-fourth of its capacity, during the second hour at one-twelfth of its capacity, during the third hour at one-eighth of its usual capacity, during the fourth hours at one-fourth of its usual capacity and during the fifth hour it was only one-half as efficient as it was supposed to be. A second pipe also displayed similar performance, but if it worked at full speed would have filled the empty cistern in 2 hours. Together with a drain pipe that drained water out of the tank a constant rate, the empty cistern could be filled in 5 hours, all the three pipe working concurrently. How many hours will it take the drain pipe to empty the filled cistern if no other pipe was functioning during the time?