Hypothyroidism in adults causes

Options

A. Addison's disease
B. Myxoedma
C. Sterility
D. Cretinism

Answer

### Step-by-Step Solution:

1. **Understanding Hypothyroidism**: Hypothyroidism is a condition where the thyroid gland does not produce enough thyroxine hormone (T4). This deficiency can lead to various health issues in adults.

2. **Identifying Causes**: The question asks for the causes of hypothyroidism in adults. We need to analyze the provided options to determine which one is a valid cause.

3. **Analyzing the Options**:
- **Option 1: Addison's Disease**: This is a disorder related to the adrenal glands and is not directly linked to thyroid hormone deficiency. Therefore, this option is incorrect.
- **Option 2: Myxedema**: Myxedema is a severe form of hypothyroidism in adults, characterized by a deficiency of thyroid hormones. This is a correct cause of hypothyroidism.
- **Option 3: Sterility**: While hypothyroidism can affect reproductive health, sterility itself is not a direct cause of hypothyroidism. Thus, this option is also incorrect.
- **Option 4: Cretinism**: Cretinism refers to hypothyroidism that occurs in infants and children due to a deficiency of thyroid hormones. Since the question specifies adults, this option is not applicable.

4. **Conclusion**: Based on the analysis, the only correct cause of hypothyroidism in adults from the provided options is **Myxedema**.

### Final Answer:
The correct answer is **Myxedema** (Option 2).

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