II. Physiology
- Melanocyte stimulating hormone rises in early pregnancy
- Increased Melanin deposition
III. Signs: General
- Scarred areas and nevi darken
- Pigmented areas become more pigmented
- Areola
- Axilla
- External genitalia
- Anal region
- Linea Nigra
IV. Signs: Specific
- Chadwick's Sign
- Darkened vulva and vagina
-
Melasma or Chloasma (Mask of pregnancy)
- Dark areas under eyes and bridge nose
- Linea Nigra
- Dark midline low Abdomen
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| Concepts | Finding (T033) |
| SnomedCT | 90751002 |
| English | linea nigra (physical finding), linea nigra, abdomen linea nigra, Linea nigra, Pigmentation of linea alba of abdomen, Linea nigra (finding) |
| Spanish | línea negra (hallazgo), línea negra, línea nigra, pigmentación de la línea alba del abdomen |
