Hypothyroidism in adults causes :

Options

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

Answer

### Step-by-Step Solution:

1. **Understanding Hypothyroidism**:
- Hypothyroidism is a condition characterized by insufficient production of thyroid hormones (T3 and T4) from the thyroid gland. This leads to a decrease in the body's metabolic rate.

2. **Identifying the Options**:
- The question lists several conditions: Addison's disease, Myxedema, Sterility, and Cretinism. We need to determine which of these is caused by hypothyroidism in adults.

3. **Analyzing Each Option**:
- **Addison's Disease**: This condition is related to the adrenal glands and involves insufficient production of cortisol and aldosterone. It is not caused by hypothyroidism, so this option is incorrect.

- **Myxedema**: This is a severe form of hypothyroidism in adults. It is characterized by symptoms such as weakness, low body temperature, and difficulty in breathing due to the lack of thyroid hormones. This option is correct.

- **Sterility**: While hypothyroidism can affect reproductive health, sterility is not a direct result of hypothyroidism. Therefore, this option is not specifically correct in the context of hypothyroidism.

- **Cretinism**: This condition is a result of severe hypothyroidism during infancy or early childhood, leading to stunted growth and developmental issues. Since the question specifies adults, this option is also incorrect.

4. **Conclusion**:
- The only condition listed that is directly related to hypothyroidism in adults is **Myxedema**. Therefore, the correct answer is Myxedema.

### Final Answer:
- Myxedema

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