Bröstvårtor

Bröstvårtor, known scientifically as papilla mammae, are the small, raised protrusions located in the center of the areola on the chest of humans and other mammals. Their primary function in mammals is to deliver milk from the mammary glands to the young during lactation. In humans, while their role in feeding is significant, they also serve as a highly sensitive erogenous zone due to a rich concentration of nerve endings.

The appearance of bröstvårtor can vary significantly between individuals. They can differ in size, shape, color, and protrusion. The color typically ranges from pink to dark brown and is influenced by melanin pigment, often becoming darker during pregnancy and breastfeeding. The texture can also vary, with some being smooth and others having small bumps. These bumps are usually due to Montgomery's glands, which secrete an oily substance that lubricates and protects the nipple and areola.

During sexual arousal, bröstvårtor can become erect due to the contraction of small muscles in the area. This erection is an involuntary response mediated by the autonomic nervous system. While the primary biological role is lactation, bröstvårtor play a complex role in human sexuality and can be a source of pleasure for many. Their anatomical location and sensitivity make them an important feature of the breast.