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Although predominantly associated with pregnancy, it can manifest in people of either sex and all ages. Beyond the gestational context, its prevalence is found to be uniformly elevated in either sex during the ages of 11 to 15. This is potentially attributable to hormonal fluctuations characteristic
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and darkened nipples. Individuals with lighter skin pigmentation tend to exhibit this phenomenon less frequently in comparison to those possessing darker pigmentation. It is typical for the linea nigra to fade and dissipate within several months following childbirth.
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82:. The prevalence of this phenomenon drops below 10% following the age of 30. Furthermore, its appearance may ensue after rapid weight gain over a short interval. It could also rarely serve as an indicator of underlying
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78:. After age 15, the prevalence of the linea nigra declines. Particularly in postpubescent people, it often serves as an indicator of elevated benign
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42:. Typically spanning approximately one centimeter (0.4 in) in width, this brownish streak extends vertically along the midline of the
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Okeke, Linus
Ikechukwu; George, Adekunle Olufemi; Ogunbiyi, Adebola Olufunmilayo; Wachtel, Mitchelle (November 2012).
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Olufemi, George, Adekunle
Olufemi Shittu, Olayiwola Babatunde Enwerem, Eokezie Wachtel, Mitchell Kuti.
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The incidence of lower mid-trunk hyperpigmentation (linea nigra) is affected by sex hormone levels
190:"Prevalence of linea nigra in patients with benign prostatic hyperplasia and prostate carcinoma"
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For pregnant women, the emergence of linea nigra is attributed to an increased production of
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138:(horizontal red line) and linea nigra visible on a 31-year-old woman seven weeks after
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Woman nurses twins six days after birth. The linea nigra is still visible.
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65:. This physiological phenomenon is concomitant with the occurrence of
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Dark vertical line that appears on the abdomen during pregnancy
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She Knows
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Pathology of pregnancy, childbirth and the puerperium
30:(Latin for "black line"), colloquially known as the
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299:. Pregmed. 2014-11-15. Archived from
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267:The Reproductive System at a Glance
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59:melanocyte-stimulating hormone
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393:. You can help Knowledge by
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164:List of cutaneous conditions
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297:"Linea nigra and pregnancy"
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263:Heffner, Linda (2010).
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96:inflammation
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365:Linea nigra
307:22 February
28:Linea nigra
434:Categories
175:References
159:Linea alba
140:childbirth
98:, or even
92:malignancy
342:cite book
334:678245464
216:0011-9059
200:: 41–43.
80:estrogens
52:umbilicus
40:pregnancy
248:Archived
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148:See also
63:placenta
76:puberty
67:melasma
61:by the
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