The dark brown line of linea nigra typically extends above and below the belly button. Linea nigra is typically seen in pregnant women as a sharp vertical, flat, dark line in the middle of the stomach.
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Linea Nigra  Information for adults

Picture of Linea Nigra: The dark brown line of linea nigra typically extends above and below the belly button. Divider line
The dark brown line of linea nigra typically extends above and below the belly button.
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Overview
Linea nigra is a dark vertical line that appears on the belly during pregnancy. It can extend from the top of the belly to the pubic area, running through the center of the belly button, or the line can be shorter. Increased hormones present during pregnancy stimulate increased pigment production, causing this area to darken. After the baby is born, the line of linea nigra typically fades. Depending on your skin color, this may take up to a year after pregnancy.
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Last Modified: 22 Dec 2008
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