Why Is My Breast Oily and Leaking Milk? the Causes - Obstetrics and Gynecology

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Experiencing oily discharge and milk leakage from the breast can be concerning, especially when you are not pregnant. There are several potential causes for these symptoms, and understanding them can help you determine the next steps for your health.

Firstly, the oily discharge you are experiencing may be related to sebaceous glands in the breast tissue. These glands produce sebum, an oily substance that helps to keep the skin moisturized. An increase in sebum production can lead to an oily appearance, which might be more noticeable in certain hormonal phases of your menstrual cycle. Hormonal fluctuations, particularly during ovulation or just before menstruation, can stimulate these glands, leading to increased oiliness.

The presence of milk-like discharge, or galactorrhea, is another symptom that warrants attention. This condition can occur even in women who are not pregnant or breastfeeding. Galactorrhea can be caused by several factors:
1. Hormonal Imbalances: Elevated levels of prolactin, the hormone responsible for milk production, can lead to unexpected milk discharge. Prolactin levels can be influenced by various factors, including stress, certain medications (like antipsychotics or antidepressants), and even thyroid issues.

2. Medications: As mentioned, some medications can increase prolactin levels, leading to milk production. If you are taking any medications, it may be worth discussing this with your healthcare provider.

3. Breast Stimulation: Frequent stimulation of the breasts, whether through physical activity or other means, can sometimes lead to discharge.
4. Underlying Conditions: Conditions such as pituitary tumors (prolactinomas), hypothyroidism, or other endocrine disorders can also cause galactorrhea.
5. Infections or Inflammation: In some cases, infections or inflammation in the breast tissue can lead to discharge. This is often accompanied by other symptoms such as pain, redness, or swelling.

Given that you are experiencing both oily discharge and milk leakage, it is advisable to consult a healthcare professional. They may recommend tests to check your hormone levels, including prolactin and thyroid hormones, and possibly imaging studies like an ultrasound to rule out any structural issues in the breast or pituitary gland.

In the meantime, keep track of any additional symptoms you may experience, such as breast pain, changes in breast size or shape, or any unusual lumps. This information can be helpful for your healthcare provider in making a diagnosis.

In summary, while some degree of oiliness and milk discharge can occur due to hormonal changes, persistent or concerning symptoms should not be ignored. A thorough evaluation by a healthcare professional is essential to determine the underlying cause and appropriate treatment options. Remember, your health is paramount, and seeking medical advice is always a prudent step when faced with unusual symptoms.