Every pregnant belly tells its own story. For many women, a distinctive dark stripe appears down the center of the abdomen. As maternal health experts, we break down what this common change means.
Rest assured, this is linea nigra—Latin for "black line"—a harmless pigment line seen in many pregnancies. It typically runs from the pubic area to the navel, occasionally extending to the breasts. Most often brown and about 1 cm wide, it's a normal response to hormonal shifts.
Linea nigra usually emerges around mid-pregnancy as estrogen levels rise, boosting melanin production—the pigment that colors your skin. This darkening can affect other areas too, even in non-pregnant individuals. Sun exposure may intensify it, but it fades gradually after birth.
Read also: This is what pregnancy does to your hair
