Does mammary gland hyperplasia cause sternum pain?

Mammary gland hyperplasia is the most common breast condition among women. In adolescent or young women, premenstrual breast tenderness or pain may occur—sometimes radiating to the shoulder and back—and typically resolves spontaneously after menstruation. On physical examination, only mild breast tissue thickening may be detected, without distinct nodules; these changes are physiological rather than inflammatory or neoplastic. So, does mammary gland hyperplasia cause sternum pain? Let’s explore this further.

Does mammary gland hyperplasia cause sternum pain?

In patients with mammary gland hyperplasia, sternum pain may occasionally occur secondary to nerve irritation or traction. However, such pain is typically non-tender upon palpation. If localized tenderness over the sternum is present, further evaluation is warranted—including a complete blood count (CBC) to assess for abnormal leukocytosis. If leukocyte counts are elevated, peripheral blood smear examination should be performed to rule out atypical white blood cells, red blood cells, or platelets. In the absence of such abnormalities, sternum discomfort is more likely attributable to mammary gland hyperplasia.

For such cases, it is recommended that patients first undergo breast elastography ultrasound to determine whether, in addition to diffuse glandular hyperplasia, any nodular or space-occupying lesions are present. If nodules are identified, their management—ranging from fine-needle aspiration biopsy to surgical excision—should be guided by elastographic scoring. For isolated mammary gland hyperplasia, treatment with oral medications such as Rukang Capsules or Xiaoyao Pills may be considered for 2–3 weeks, followed by clinical reassessment.

We hope the above information is helpful to you.