Name of hormone that has no role in menstruation.

Options

A. LH
B. GH
C. FSH
D. TSH.

Answer

To answer the question about which hormone has no role in menstruation, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Menstruation**: Menstruation is the process where the endometrium (the inner lining of the uterus) sheds, resulting in vaginal bleeding. This occurs in females after puberty until around the age of 50.

2. **Identify the Hormones**: The hormones listed in the options are:
- LH (Luteinizing Hormone)
- GH (Growth Hormone)
- FSH (Follicle Stimulating Hormone)
- TSH (Thyroid Stimulating Hormone)

3. **Analyze Each Hormone's Role**:
- **LH (Luteinizing Hormone)**: This hormone is involved in stimulating the corpus luteum and plays a role in the menstrual cycle. **Not the answer.**
- **GH (Growth Hormone)**: While it is primarily responsible for growth and metabolism, it does not directly influence menstruation. However, it is involved in overall physiological functions. **Not the best answer.**
- **FSH (Follicle Stimulating Hormone)**: This hormone is crucial for the development of ovarian follicles and is directly involved in the menstrual cycle. **Not the answer.**
- **TSH (Thyroid Stimulating Hormone)**: This hormone stimulates the thyroid gland to produce thyroxine, which regulates metabolism but has no direct role in the menstrual cycle. **This is the correct answer.**

4. **Conclusion**: Based on the analysis, the hormone that has no role in menstruation is **TSH (Thyroid Stimulating Hormone)**.

### Final Answer:
The hormone that has no role in menstruation is **TSH (Thyroid Stimulating Hormone)**.

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