Skin Signs Of Metabolic Syndrome
Welcome to another edition of the Doctor’s Note where we talk about what’s on our minds when it comes to your health.
This week I had the pleasure of sitting down again with Dr. Joni Sago to discuss how our skin can reveal what's happening inside our bodies. We focused on skin tags and acanthosis nigricans (dark, velvety patches of skin), both of which can be early warning signs of insulin resistance and metabolic syndrome, even in children and young adults.
Dr. Sago shared that she sometimes sees these signs in patients as young as 13 who come to her office for something as simple as acne. That's why it's so important to look beyond what's happening on the surface. What might seem like a harmless skin condition could actually be telling us something about a person's metabolic health. As healthcare providers, we need to pay attention to these clues and take a closer look at things like blood sugar, cholesterol, liver function, and blood pressure. The earlier we recognize these warning signs, the sooner we can make lifestyle changes and take steps to prevent more serious health problems down the road.
We also discussed the connection between insulin resistance and a painful skin condition called hidradenitis suppurativa (HS), which causes recurring boils, often in the armpits and groin. We're learning more about how inflammation and metabolic health can contribute to conditions like this, and that's opening the door to new treatment options. Medications like GLP-1s are showing promise for some patients, not only in improving metabolic health but also in helping certain skin conditions. The important takeaway is that we can't always treat what we see on the outside without considering what's happening on the inside. That's why I believe so strongly in looking at the whole patient, not just treating individual symptoms.
PODCAST NOTES
The appearance of brownish, velvety discoloration on the neck—clinically known as acanthosis nigricans—along with the presence of skin tags, should be recognized as early and visible indicators of underlying insulin resistance and metabolic syndrome. These are not merely cosmetic changes, but important physical clues that the body’s metabolism is under significant stress.
Alarmingly, these skin findings are becoming more prevalent in younger populations, including teenagers and even children as young as 13 years old, highlighting that the impact of our modern diet and the ongoing obesity epidemic extends far beyond adults and is now a major pediatric issue. Early detection is essential because the longer insulin resistance continues unchecked, the harder it becomes to reverse its effects.
There is a direct and well-established link between the consumption of high-glycemic, processed foods (the Standard American Diet) and the development of metabolic distress, including both the worsening of acne and the progression of insulin resistance. Simply put, what we eat is directly reflected not only in our weight, but also in the health and appearance of our skin.
Both acanthosis nigricans and skin tags develop due to the effect of persistently elevated insulin levels on skin cells and blood vessels. The skin in areas of friction, like the back of the neck, responds to insulin by becoming thicker and discolored, which is visible evidence of what’s happening on the inside with your metabolism.
When we identify these early skin changes, it is critically important to conduct comprehensive metabolic evaluations. This should include checking fasting lipid panels, calculating triglyceride to HDL ratios, assessing liver enzymes, measuring blood pressure, and evaluating waist and hip circumference. Even if we don’t check insulin levels directly, these laboratory and physical findings give us a clear picture of metabolic risk.
Early and aggressive intervention in adolescents with signs of insulin resistance—including education, lifestyle guidance, and serious discussions about the future risks of diabetes, heart disease, and other complications—can have dramatic benefits. Addressing insulin resistance before adulthood offers the best shot at long-term health and prevention of chronic disease.
Hidradenitis suppurativa (HS), a debilitating and often overlooked skin condition characterized by recurrent boils in the armpits and groin, is increasingly recognized as being intimately linked with metabolic syndrome and underlying inflammation—not just recurrent infection or autoimmunity. Understanding this connection is key to effective management, both for the skin and overall health.
Excitingly, new advancements in medication, particularly GLP-1 agonists, have shown significant promise in not only reducing weight and improving blood sugar, but in reversing the skin manifestations of metabolic disease. These therapies work by replacing missing gut hormones, and their consistent use has led to improved outcomes and even reversal of previously stubborn skin findings like acanthosis nigricans.
The skin can be a window into your overall metabolic health. When I see changes like acanthosis nigricans, skin tags, or recurring boils, I know it's time to look a little deeper. These aren't always just cosmetic concerns. They can be important warning signs of insulin resistance and other underlying health issues. Don't ignore what your body may be telling you. Talk with your healthcare provider, get the right evaluation, and explore treatment options that address the root causes, not just the symptoms. If you or someone in your family has noticed these skin changes, now is a good time to start that conversation. Taking small, proactive steps today can make a real difference in your long-term health.
Stay educated. Stay healthy.
Till next week.
