Why are my breasts sore before a period? By Lizzy on December 15, 2018 Fluctuations in hormones before a period are a common cause of sore breasts. In this article, learn more about why breast pain or tenderness often occurs before a period. Source: MedicalNewsToday.com Published in Health News Lizzy More from Health NewsMore posts in Health News »AMA Too Woke? FDA Warns on Probiotics; Medicare Drug-Price Negotiation Moves ForwardAMA Too Woke? FDA Warns on Probiotics; Medicare Drug-Price Negotiation Moves ForwardSABR Offers New Hope for Older Patients With Inoperable Kidney CancerSABR Offers New Hope for Older Patients With Inoperable Kidney CancerMenopausal Women With Obesity Endure Worse Symptoms, Less HT ReliefMenopausal Women With Obesity Endure Worse Symptoms, Less HT ReliefStudy Pinpoints Growing Use of Cannabis to Manage Menopause SymptomsStudy Pinpoints Growing Use of Cannabis to Manage Menopause SymptomsExposure to air pollution linked to increased risk of stroke within 5 daysExposure to air pollution linked to increased risk of stroke within 5 days