Is nipple color very dark normal?

If only pure nipple color is dark without other abnormal symptoms, it is generally normal and may be related to pigmentation. Usually pay attention to keep the nipple clean and reduce the stimulation to the nipple. If the nipple color is dark and accompanied by pain, redness, galactorrhoea and other symptoms, it is abnormal and related to breast disease. It is necessary to see a doctor as soon as possible.