Yellow Discharge from Nipple: Causes and Concerns Explained - Breast and Thyroid

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There is yellow, chunky discharge from the nipple?


In recent days, I have noticed yellowish discharge from my left nipple, which appears in clumps and sticks to the soft tissue.
The discharge is concentrated in the middle of the nipple and cannot be easily removed or expressed.
I have experienced this before, but not as much as this time.
It went away for a while, and now it has returned.
Could this be related to my menstrual cycle or ovulation? Or could it be a nipple infection or something else?

Miss Yang, 10~19 year old female. Ask Date: 2021/06/23

Dr. Yuan Tianmin reply Breast and Thyroid


It seems more like a condition caused by medication rather than an infection of the nipple, or it could be related to the menstrual cycle.

Reply Date: 2021/06/23

More Info


Yellow discharge from the nipple can be concerning and may indicate various underlying issues. It’s essential to understand that nipple discharge can occur for several reasons, and while some causes are benign, others may require medical attention.

One common cause of yellow discharge is a condition known as duct ectasia. This occurs when a milk duct beneath the nipple dilates, fills with fluid, and thickens. The discharge can be yellow, green, or even black, and it may have a sticky consistency. Duct ectasia is more common in women who are nearing menopause, but it can occur at any age.

Another potential cause is an infection, such as a breast abscess or mastitis, which is an infection of the breast tissue. Mastitis typically presents with symptoms such as redness, swelling, warmth, and pain in the breast, along with fever and flu-like symptoms. If the discharge is accompanied by these symptoms, it is crucial to seek medical attention promptly.

Hormonal changes related to the menstrual cycle can also influence nipple discharge. For instance, during ovulation or just before menstruation, hormonal fluctuations can lead to increased breast sensitivity and discharge. However, if the discharge is persistent, especially if it is yellow and sticky, it is advisable to consult a healthcare provider for further evaluation.

In some cases, yellow discharge may be associated with benign conditions such as fibrocystic breast changes, where the breast tissue becomes lumpy or rope-like, often accompanied by tenderness. This condition is common and usually not serious, but it can cause discomfort and changes in discharge.

It is also important to consider the possibility of a more serious condition, such as a benign tumor (like a papilloma) or, although rare, breast cancer. While breast cancer is less likely to present as yellow discharge, any unusual changes in the breast should be evaluated by a healthcare professional.

If you are experiencing yellow discharge from your nipple, it is essential to monitor any additional symptoms, such as changes in breast shape, size, or texture, pain, or any other unusual signs. It is advisable to schedule an appointment with a healthcare provider, such as a gynecologist or a breast specialist, who can perform a thorough examination and possibly recommend imaging studies, such as a mammogram or ultrasound, to determine the cause of the discharge.

In summary, yellow discharge from the nipple can result from various factors, including hormonal changes, duct ectasia, infections, or benign conditions. While some causes are harmless, others may require medical intervention. Therefore, it is crucial to seek professional advice to ensure proper diagnosis and treatment. Remember, early detection and intervention are key to managing any potential health issues effectively.

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