Why no linea nigra

The dark line generally appears to run from the umbilicus your belly button and runs straight down to the pubic bone. But it can also run from the umbilicus upwards, towards and almost level with the ribcage. It may be a slight shade of brown or a darker pigment to almost black in colour.

You will likely start to notice it from during the second weeks 13 — 26 and third 27 — 40 weeks trimester.

In the same vein, dark lines may also appear around your belly button, areolas and vagina too, but they should all disappear nine to 12 months after birth. The reason the linea nigra develops is all down to hormones.

For example, a woman will produce more estrogen during one pregnancy than throughout her entire life when not pregnant. Women develop a linea nigra because of an increase in the melanocyte stimulating hormone which causes skin cells to darken. Women of all different skin colors are affected, although linea nigra can be more pronounced in women with fair skin. Typically about one centimeter in width, the line usually starts at the pubic bone and continues up to the belly button, though it can extend to just below the breast in some cases.

In fact, up to 75 percent of women will experience this hormone-induced darkening of the skin during pregnancy. Linea nigra typically resolves on its own within a few months of delivery, so many experts advise not treating it — especially during pregnancy or if you are breastfeeding.

If you really want to get rid of linea nigra, Dr. Sheth says you may use bleaching creams after delivery if you're formula-feeding , or you could try a fade cream or topical retinol. If you want a natural approach, try applying a little lemon juice to your skin. Sheth says. Learn how we keep our content accurate and up-to-date by reading our medical review and editorial policy.

The educational health content on What To Expect is reviewed by our medical review board and team of experts to be up-to-date and in line with the latest evidence-based medical information and accepted health guidelines, including the medically reviewed What to Expect books by Heidi Murkoff. This educational content is not medical or diagnostic advice.

Use of this site is subject to our terms of use and privacy policy. Registry Builder New. Linea Nigra. Medically Reviewed by Kameelah Phillips, M. Medical Review Policy All What to Expect content that addresses health or safety is medically reviewed by a team of vetted health professionals. The linea nigra is that vertical line on your belly, a pregnancy trademark that commonly shows up on moms-to-be.

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