👉 The veins in the breasts, also known as the breast veins, are smaller and less prominent than the larger arteries but serve a similar function in returning blood from the breast tissue back to the heart. They can be visible as small blue or purple lines under the skin, especially when the breasts are full or after drinking alcohol. Unlike arteries, they do not have valves to prevent backflow of blood. These veins play a role in maintaining circulation and can sometimes be a focus for cosmetic procedures like breast augmentation.
