All of the following statements about Galactorrhea are true, Except:
**Core Concept**
Galactorrhea refers to the spontaneous flow of milk from the breast, not associated with childbirth or nursing. It can be caused by hormonal imbalances, particularly an excess of prolactin. This condition can be idiopathic or secondary to various medical conditions, including pituitary tumors.
**Why the Correct Answer is Right**
The correct answer is related to the pathophysiology of galactorrhea. **Hyperprolactinemia**, an excess of prolactin, is the underlying cause of galactorrhea. Prolactin is produced by the pituitary gland and regulates lactation. Elevated prolactin levels can be due to a variety of factors, including pituitary tumors (prolactinomas), hypothyroidism, and certain medications (e.g., dopamine antagonists).
**Why Each Wrong Option is Incorrect**
* **Option A:** Galactorrhea is often associated with _hyperprolactinemia_, so stating that it is not is incorrect.
* **Option B:** Galactorrhea can be caused by various factors, including hormonal imbalances and pituitary tumors, so stating that it is caused by "stress" is not entirely accurate.
* **Option C:** Galactorrhea is a symptom of an underlying condition, so stating that it is a diagnosis in itself is incorrect.
**Clinical Pearl / High-Yield Fact**
Galactorrhea can be a symptom of an underlying pituitary tumor, particularly a prolactinoma. These tumors can be treated with dopamine agonists, which help to reduce prolactin levels and alleviate symptoms.
**Correct Answer: None**