– Increased abdominal weight
– Difficulty losing excess weight
– Increased hunger or cravings
– Fatigue
– Elevated blood sugar
– High triglycerides
– High blood pressure
– Changes associated with prediabetes
These signs are not specific to insulin resistance, however, and can have many other causes.
When Should You Get Checked?
If you notice new dark, thick, or velvety skin around your neck that does not go away, consider speaking with a healthcare professional.
They may evaluate your medical history, examine the skin, and recommend blood tests to assess glucose regulation. Depending on the situation, tests such as HbA1c and fasting blood glucose may be used to look for prediabetes or diabetes.
Early detection can be helpful because insulin resistance and prediabetes can often be addressed through lifestyle changes and, when appropriate, medical treatment.
Don’t Try to Scrub It Away
If the discoloration is related to acanthosis nigricans, aggressively scrubbing the skin or using harsh bleaching products will not address the underlying cause. Excessive friction can also irritate the skin and potentially make the appearance worse.
Instead, focus on identifying the possible underlying cause and treating the skin gently.
What Can Support Better Metabolic Health?
Healthy lifestyle habits can play an important role in improving insulin sensitivity and supporting healthy blood sugar levels.
Regular physical activity, a balanced eating pattern rich in vegetables, fiber, lean protein, and minimally processed foods, adequate sleep, and maintaining a healthy weight when appropriate can all contribute to better metabolic health.
Even small, sustainable changes can be more useful than extreme diets or quick fixes.
The Important Takeaway
A darker or thicker neck does not automatically mean that someone has insulin resistance or diabetes. But if the change looks like persistent dark, thick, velvety skin—especially if it is also present in the armpits or other skin folds—it may be worth having it evaluated.
Your skin can sometimes provide clues about what is happening inside your body, but only proper medical evaluation and appropriate blood testing can determine whether insulin resistance or abnormal blood sugar is present.
If you’ve noticed a sudden or unexplained change in your skin, don’t ignore it—and don’t panic either. A simple medical check can help determine the cause and, if necessary, identify metabolic problems early.
