This image displays a neck with darker "velvety" skin typical of acanthosis nigricans in a child.
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The images below are those of skin rashes affecting the necks of children. A darkening and thickening of the skin on the neck is a classic sign of acanthosis nigricans, which is most common in obese persons. The neck is susceptible to breakouts of red, itchy bumps called hives (urticaria), when the body has a reaction to an allergen. Eczema, an itchy, red rash that is often made worse by scratching is also found on the neck area. Moles (nevi) may also be located on the neck. Click a photo below to learn more, such as when to seek medical advice about rashes on the neck area in children.