Lactational amenorrhoea, is a natrual way of birth spacing. It is due to the high level of

Options

A. FSH and LH hormones
B. Estrogen
C. Prolactin
D. Progesterone

Answer

### Step-by-Step Solution:

1. **Understanding Lactational Amenorrhea**:
- Lactational amenorrhea refers to the natural period of infertility that occurs after childbirth when a woman is breastfeeding. During this time, menstruation is absent, which means ovulation does not occur.

2. **Hormonal Influence**:
- The primary hormone responsible for lactational amenorrhea is **prolactin**. Prolactin is secreted by the pituitary gland and is crucial for milk production in breastfeeding mothers.

3. **Effect of Prolactin on Other Hormones**:
- High levels of prolactin inhibit the secretion of gonadotropin-releasing hormone (GnRH) from the hypothalamus. This inhibition leads to reduced levels of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from the pituitary gland.

4. **Consequences of Reduced FSH and LH**:
- FSH and LH are essential for the ovarian cycle, including the maturation of eggs and ovulation. When their levels are low due to high prolactin, the menstrual cycle is disrupted, and ovulation does not occur.

5. **Conclusion**:
- Therefore, lactational amenorrhea is primarily due to the high levels of **prolactin**, which suppresses the reproductive hormones necessary for ovulation and menstruation.