Acromegaly is caused by :

Options

A. Excess of GH
B. Excess of Thyroxin
C. Deficiency of Thyroxin
D. Excess of Adrenalin

Answer

**Step-by-Step Solution:**

1. **Understanding Acromegaly**: Acromegaly is a condition characterized by abnormal growth of bones and tissues, particularly in the face, hands, and feet. It typically occurs in adults.

2. **Identifying the Cause**: The primary cause of acromegaly is the excess secretion of growth hormone (GH) from the pituitary gland. This overproduction usually results from a benign tumor on the pituitary gland known as an adenoma.

3. **Differentiating Other Hormones**:
- Thyroxine is a hormone produced by the thyroid gland and is primarily involved in regulating metabolism. Its deficiency can lead to conditions like hypothyroidism, but it does not cause acromegaly.
- Adrenaline, produced by the adrenal medulla, is involved in the body's fight-or-flight response and does not relate to growth hormone levels.
- Therefore, the other options (excess of thyroxine, deficiency of thyroxine, and excess of adrenaline) are not causes of acromegaly.

4. **Conclusion**: Based on the information, acromegaly is specifically caused by an excess of growth hormone.

**Final Answer**: Acromegaly is caused by excess of growth hormone.

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