The color of the areola begins to darken after a woman is 6 weeks pregnant. This is due to the increase in estrogen, progesterone and prolactin produced by the woman’s body after pregnancy. When the areola darkens, it is surrounded by small nodular bumps called Montserrat’s nodules. The darkening of the areola in women is also related to their own constitution, so women should pay attention to the care of their breasts after pregnancy, pay attention to cleanliness and hygiene, wear loose underwear, avoid squeezing and collision to avoid affecting the development of the breasts, which may affect the secretion of breast milk after delivery. The biggest change in women after pregnancy is the increase in size of the uterus and breasts to suit the embryo’s bed and growth and development, while the breasts are developed for the baby’s sucking after delivery. Therefore, women must pay attention to enhance nutrition during pregnancy to ensure their own nutrient absorption.