Linea nigra

Dark vertical line that appears on the abdomen during pregnancy

Linea nigra, colloquially known as the pregnancy line, manifests as a linear area of heightened pigmentation frequently observed on the abdominal region during pregnancy. Typically spanning approximately one centimeter in width, this brownish streak extends vertically along the midline of the abdomen, spanning from the pubis to the umbilicus. Variably, it may traverse from the pubis to the upper abdominal region.

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