The linea nigra is a black, vertical line that runs down the centre of your stomach. It appears in most pregnancies and is more visible in women with dark skin or hair. The linea nigra arises due to increased levels of hormones such as estrogen and progesterone during pregnancy, which can cause some parts of the skin to appear darker.
According to WebMD, The linea nigra is caused by hormonal fluctuations during pregnancy. According to one theory, the hormones induce your body to manufacture more melanin (the substance responsible for skin pigmentation), and this excess pigmentation manifests as a dark pregnancy line on your tummy. Women of all skin tones are impacted, albeit linea nigra is more visible in fair-skinned women.
The existence of the linea nigra during pregnancy is natural. The origin of this pregnancy line, on the other hand, remains a mystery.
The major theory is that the increased estrogen generated by your body during pregnancy promotes melanocytes, which are skin cells. Melanocytes are responsible for producing the pigment that darkens your skin, which is why you have a linea nigra.
Content created and supplied by: Healthtalkes (via Opera News )
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