Myxoedema occurs due to

Options

A. Hypersecretion of thyroid hormone
B. Hyposecretion of thyroid hormone
C. Hypersecretion of parathormone
D. Hyposecretion of parathormone.

Answer

**Step-by-Step Solution:**

1. **Understanding Myxoedema**: Myxoedema is a medical condition characterized by the thickening and swelling of the skin. It is important to identify the underlying cause of this condition.

2. **Identifying Hormonal Imbalances**: The question provides four options related to hormonal secretions:
- Hypersecretion of thyroid hormone
- Hyposecretion of thyroid hormone
- Hypersecretion of parathormone
- Hyposecretion of parathormone

3. **Linking Myxoedema to Thyroid Function**: Myxoedema is primarily associated with thyroid function. The thyroid gland produces hormones that regulate metabolism. A deficiency in these hormones can lead to various symptoms.

4. **Recognizing Symptoms of Hypothyroidism**: Myxoedema is associated with symptoms of hypothyroidism, which include lethargy, weight gain, fatigue, depression, and sensitivity to cold. These symptoms indicate that the thyroid is underactive.

5. **Conclusion on Cause**: Given that myxoedema is linked to the underproduction of thyroid hormones, it is caused by the hyposecretion of thyroid hormone. Therefore, the correct answer is that myxoedema occurs due to hyposecretion of thyroid hormone.

6. **Final Answer**: The correct option is **hyposecretion of thyroid hormone**.

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