What Causes Breast Pain?
Jul 10, 2026
Source: Cainiu Health
Dr. Zhang Lu
Introduction
In most cases, breast pain may be caused by hormonal fluctuations during menstruation, wearing overly tight undergarments, mammary gland hyperplasia, mastitis, or mammary duct ectasia. If discomfort occurs, it is advisable to seek timely medical evaluation and treatment at a reputable hospital. In daily life, choose well-fitting, comfortable undergarments; maintain regular sleep patterns; and manage emotional well-being.
Generally, breast pain may be caused by hormonal fluctuations during menstruation, wearing overly tight bras, mammary gland hyperplasia, mastitis, or mammary duct ectasia. If discomfort occurs, it is advisable to seek timely medical evaluation and treatment at a reputable hospital. A detailed analysis follows:
1. Hormonal Fluctuations During Menstruation
Before and after menstruation, changes in estrogen and progesterone levels stimulate mild proliferation and edema of mammary gland tissue, leading to breast tenderness and swelling. Gentle warm compresses applied to the breasts, maintaining emotional well-being, and avoiding late-night activities may help; symptoms typically resolve spontaneously after menstruation.
2. Wearing an Overly Tight Bra
Long-term use of undersized, excessively restrictive bras can compress mammary gland tissue and impair local blood circulation, resulting in a sensation of heaviness and pain in the breasts. Switching to loose-fitting, breathable cotton bras and reducing localized pressure on the breasts—along with gentle breast massage to promote circulation—can alleviate symptoms.
3. Mammary Gland Hyperplasia
Hormonal imbalance leads to incomplete regression of proliferated mammary tissue, causing cyclical sharp or dull breast pain. Under medical guidance, medications such as Rupixiao Tablets, Xiaoyao Pills, and Xiao Jin Pills may be prescribed. Additionally, maintaining regular sleep-wake cycles and emotional stability is recommended.
4. Mastitis
Bacterial infection of mammary tissue triggers inflammatory edema and irritation of surrounding structures, manifesting as breast erythema, swelling, and pain. Antibiotics such as Cefalexin Capsules, Roxithromycin Dispersible Tablets, and Dandelion Granules may be prescribed per physician instructions. Maintaining breast hygiene and preventing milk stasis are essential.
5. Mammary Duct Ectasia
Abnormal dilation of mammary ducts results in accumulation of secretions within the ducts, provoking inflammation and causing persistent dull pain or tenderness upon palpation. Treatment may include Amoxicillin-Clavulanate Potassium Tablets, Xihuang Capsules, and Runing Granules, as directed by a physician. In severe cases, surgical excision of the affected mammary duct may be required.
In daily life, choose well-fitting, comfortable undergarments; maintain regular作息 (sleep-wake) patterns; manage stress and emotions effectively; limit intake of high-fat foods; and undergo routine breast screening to detect benign breast lesions early.
