Breasts can become soft due to dieting and weight loss, ageing, pregnancy, etc. Breasts are mainly composed of fat and glands. Normally, breasts are soft, but each person’s body type is different, so there will be differences. Local fat can play a role in supporting the breasts. Due to excessive dieting to lose weight, it will lead to less fat under the skin, while the fat in the breasts will also gradually decrease, and the breasts will look smaller without the support of fat, and the phenomenon of breast softness will appear. Dieting can also lead to malnutrition and can cause anemia. Some people do not lose weight in the process of dieting, but their breasts become softer and smaller. When the human body ages, the mammary glands will also gradually degenerate, when the skin elasticity of the breast gradually weakened, while the breast will also slowly become soft, regular chest massage, can improve the degeneration of the chest. The degree of breast softness and hardness is related to the hormonal secretion changes in the body, menstruation or pregnancy hormone level changes in the body, some women are prone to breast softening.