Cooper's ligaments

Cooper's ligaments (also known as Cooper's suspensory ligaments and the fibrocollegenous septa) are connective tissue in the breast that helps maintain structural integrity. However, as with all ligaments, over time they may lose strength and tension in later years. Their role in the normal evolution of the aging breast is considered controversial.

It should not be confused with the pectineal ligament, sometimes called the inguinal ligament of Cooper, which shares the same eponym.

Cultural references
In popular culture they are often blamed for the effects of aging. Samuel Shem (author of the "House of God") called them "Cooper's Droopers", referring to a lack of tension.