In people with darker skin tones, dark neck may appear leathery. Also known as “black neck,” this hyperpigmentation on the neck is typically not a cause for concern and is not contagious.

Acanthosis nigricans (AN) is a common cause. AN causes thicker ... condition causing dry, dark patches of skin that typically develop in the armpits, groin, or neck. They can be a sign of an ...

Neck pain and shoulder pain that occur together typically happen due to an injury, but it can also be due to certain health conditions, including a heart attack. Treatment can depend on the cause.