Stunned growth of child during pregnancy mental retardation, low intelligence quotient is due to

Answer

**Step-by-Step Solution:**

1. **Understanding the Symptoms**: The symptoms mentioned in the question include stunted growth, mental retardation, and low intelligence quotient in a child during pregnancy.

2. **Identifying the Cause**: These symptoms can be linked to maternal health during pregnancy. One significant condition that can lead to such developmental issues in the child is hypothyroidism.

3. **Defining Hypothyroidism**: Hypothyroidism is a condition where the thyroid gland is underactive and does not produce enough thyroid hormones. This can severely affect fetal development.

4. **Linking Hypothyroidism to Iodine Deficiency**: A common cause of hypothyroidism is iodine deficiency in the mother's diet. Iodine is essential for the synthesis of thyroid hormones.

5. **Consequences of Iodine Deficiency**: When a pregnant woman has low iodine levels, it can lead to insufficient production of thyroid hormones, which is crucial for the proper growth and development of the fetus. This can result in stunted growth, mental retardation, and low IQ in the child.

6. **Conclusion**: Therefore, the stunted growth of the child during pregnancy, along with mental retardation and low intelligence quotient, is primarily due to iodine deficiency in the mother's diet leading to hypothyroidism.

**Final Answer**: The stunted growth, mental retardation, and low intelligence quotient in a child during pregnancy are due to iodine deficiency in the mother's diet, leading to hypothyroidism.

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