Lumps Near Armpit: Could It Be Accessory Breast Tissue? - Breast and Thyroid

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When it comes to lumps or masses near the armpit, particularly in relation to the menstrual cycle, there are several important factors to consider. The presence of lumps that feel like cysts, especially if they are tender or painful during certain times of the menstrual cycle, can be indicative of several conditions, including accessory breast tissue, hormonal changes, or even benign cysts.

Accessory Breast Tissue: Accessory breast tissue, also known as supernumerary breast tissue, can occur along the milk line, which extends from the armpit to the groin. This condition is not uncommon and can manifest as lumps or nodules in the axillary (armpit) region. These lumps can sometimes feel similar to breast tissue and may become more pronounced or tender due to hormonal fluctuations associated with the menstrual cycle. If you notice that these lumps are more painful or swollen before your period, it could be due to hormonal changes that cause breast and surrounding tissue to swell.

Hormonal Influence: The menstrual cycle is characterized by fluctuations in hormone levels, particularly estrogen and progesterone. These hormones can cause breast tissue to swell and become tender, which may also affect any accessory breast tissue or cysts present in the area. Many women experience cyclical breast pain or discomfort, known as mastalgia, which can be exacerbated by hormonal changes. If the lumps are indeed related to hormonal changes, they may fluctuate in size and tenderness throughout your cycle.

Cysts: Another possibility is that the lumps you are feeling are cysts, which are fluid-filled sacs that can develop in the breast or surrounding tissue. These cysts can also be influenced by hormonal changes and may become more noticeable or painful during the menstrual cycle. It’s important to note that while cysts are usually benign, they should be evaluated by a healthcare professional to rule out any other conditions.

When to Seek Medical Advice: Given your description of the lumps being painful, especially in relation to your menstrual cycle, it is advisable to consult with a healthcare provider. A thorough examination, possibly including imaging studies such as an ultrasound or mammogram, can help determine the nature of the lumps. Your healthcare provider may also consider your medical history, any changes in the lumps, and other symptoms you may be experiencing.

In conclusion, while the presence of lumps near the armpit could potentially be accessory breast tissue, hormonal influences, or cysts, it is essential to have a professional evaluation to ensure proper diagnosis and management. If you notice any changes in the lumps, such as increased size, persistent pain, or any new symptoms, do not hesitate to seek medical attention. Regular check-ups and self-examinations are key components of maintaining breast health, and being proactive about any changes can lead to early detection of potential issues.