Pigmentation
Categories:
Obstetrics or Midwifery
Pigmentation or darkening of the middle line of the abdomen
begins by the eighth or twelfth week, and a dark band about 1/8 of an inch
wide extends from the pubis (bone) to and around the navel or even higher.
This shows plainer in brunettes, where it is quite conspicuous.
Discolorations also appear on other parts of the body, especially on the
face, "moth patches."