Macromastia means breasts are oversized for your body frame—usually more than 500 grams above ideal weight or enough extra tissue to cause physical problems. Symptoms start early, often in the teen years, and tend to get worse with weight gain, pregnancy, or hormone swings. The clearest complaint is chronic neck, shoulder, and upper-back pain that deepens as the day goes on. Bra straps dig grooves into the skin and may leave tender marks or rashes. The weight pulls the shoulders forward, so many women also feel burning or numbness down the arms when the bra is tight. Skin-fold moisture under... Learn more