Acanthosis nigricans is a sign that something is happening in our body and we have not paid attention, these coloration changes that not only focus on the neck, but also affect other parts of our body such as: armpits, groin, abdomen, knuckles and some other folds, are the result of an abnormality that affects our metabolism, the most common cause is insulin resistance or also called insulin resistance, this condition most of the time is a condition or trigger of Diabetes mellitus type II, more commonly suffered in adults, however today we can see many more cases in adolescents than a few years ago, is of course this linked 100% to the little care in our diet, but also to physical inactivity. 

Human beings always tend to judge situations of which we have no knowledge, and acanthosis nigricans is one of those cases, when we observe this always arise comments like: "He does not bathe well" or "he has cancer", among others, however, due to what is said between voices and misinformation the real factors are always omitted, although it is worth mentioning that some types of cancer as well as some cortisone treatments can also trigger this problem. One of the most conclusive factors in this case is always our root theme "Obesity", always present in all metabolic and plurimetabolic diseases, and we know that letting this terrible problem grow, will always bring us consequences, to be more clear and direct, the increase in the consumption of refined sugars and unsaturated fats gives us as a consequence an overproduction of insulin, This in turn causes the adrenal glands to be affected, which in turn causes more release of a hormone called cortisol, which is the cause of the color change in our skin, so if you see a family member or friend with such signs, recommend you go to your doctor to be evaluated in time to avoid a progression of insulin resistance to Diabetes Mellitus type II.