Nowadays, many people are experiencing embarrassment about having dark and ugly skin spots and patches around their neck. This problem occurs easily especially in those cases where people does not give much attention to their necks.
The dark complexion that you have in your neck may be caused by the fact that you do not wash your neck as often as you wash your face.
Furthermore, aging and the longer exposure to sun are the main causes of the dark discoloration on your neck. The other causes are brought to you by diabetes, genetics, polycystic ovary syndrome, poor hygiene, and sudden weight loss or sudden weight gain.
This skin pigmentation condition is also called as acanthosis nigricans which is neither an infection nor contagious.