Breast size can be the result of weight gain, pregnancy or breastfeeding or simple genetics. Women with disproportionately large breasts can suffer from significant discomfort, having a detrimental effect on their quality of life, and undermining their self-confidence. In addition to causing a woman to feel self-conscious, excessively large breasts can often generate neck and back pain, and compromised breathing, at the very least. These women may choose to seek breast reduction surgery, not simply for cosmetic reasons, but to alleviate these related health and emotional issues, thus restoring a positive self-image and quality of life.