Breasts that are very big and heavy can cause women both cosmetic and health problems. While some women are self-conscious about their abnormally top-heavy figures, others may suffer from medical ailments. Back, neck, and shoulder pain can be caused by heavy and pendulous breasts. Furthermore, moisture may be trapped beneath the breasts when heavy breasts sit on the chest, leading to recurrent skin rashes and infections. Breasts that are too heavy might cause fatigue and make it difficult to exercise. Insurance may fund breast reduction surgery to treat certain medical issues in some situations.