Have you ever noticed dark, velvety patches of skin around your neck, under your arms, or in other body folds and wondered what they mean?
\nFor many people, these skin changes appear gradually and don’t cause pain or itching. Because they often develop slowly, they’re easy to ignore or mistake for dirt, poor hygiene, or simple skin discoloration. But in some cases, these patches can be a sign that your body is trying to tell you something important.<\/p>\n
One possible cause is acanthosis nigricans, a skin condition that is often linked with insulin resistance, obesity, hormonal disorders, certain medications, or, more rarely, other underlying medical conditions.
\nThe good news is that acanthosis nigricans itself is not contagious, and it is not caused by poor hygiene. While it isn’t dangerous on its own, it can sometimes be a clue that it’s worth discussing your
\noverall health with a healthcare professional.
\nLet’s take a closer look at what it is, why it happens, and when it’s a good idea to seek medical advice.
\nI\/hot Is Acanthosis Nigricans?<\/p>\n
Let’s take a closer look at what it is, why it happens, and when it’s a good idea to seek medical advice.
\nWhat Is Acanthosis Nigricans?
\nAcanthosis nigricans is a skin condition that causes areas of skin to become:
\nDarker than the surrounding skin
\nThicker
\nVelvety in texture
\nThe discoloration may range from light brown to dark brown or gray, depending on a person’s natural skin tone.
\nThe affected skin often feels soft or
\nslightly raised rather than rough or scaly.
\nWhere Does It Usually Appear?<\/p>\n
The condition most commonly develops in skin folds, including:
\nThe back or sides of the neck
\nUnder the arms (armpits)
\nThe groin
\nElbows
\nKnees
\nKnuckles
\nUnder the breasts
\nLess commonly, it can appear on:
\nThe face
\nBelly button
\nHands
\nLips
\nWhat Causes Acanthosis Nigricans?
\nAcanthosis nigricans isn’t a disease by<\/p>\n
Acanthosis nigricans isn’t a disease by itself. Instead, it’s often a sign associated with another condition or factor.
\n1. Insulin Resistance
\nThe most common cause is insulin
\nresistance, a condition in which the body’s cells don’t respond well to insulin.
\nTo compensate, the body produces more insulin, and high in levels may stimulate skin cells to grow more rapidly, leading to thickened, darker patches.
\nInsulin resistance is commonly associated with:
\nPrediabetes
\nType 2 diabetes
\nMetabolic syndrome<\/p>\n
Metabolic syndrome
\nNot everyone with insulin resistance develops acanthosis nigricans, but the two are frequently linked.
\n2. Excess Body Weight
\nPeople who are overweight or obese are more likely to develop insulin resistance, making acanthosis nigricans more common in this group.
\nIn some individuals, gradual weight loss and improved metabolic health may lead to improvement in the skin changes.
\n3. Hormonal Conditions
\nSeveral hormone-related conditions may increase the likelihood of developing acanthosis nigricans, including:
\nPolycystic ovary syndrome (PCOS)<\/p>\n
4. Certain Medications
\nSome medications have been associated
\nwith acanthosis nigricans, including:
\nHigh-dose corticosteroids
\nSome hormonal medications
\nHigh-dose niacin
\nCertain treatments that affect growth hormones
\nIf you notice new skin changes after starting a medication, don’t stop taking it on your own. Speak with your healthcare provider.
\n5. Genetics
\nIn some families, acanthosis nigricans can occur due to inherited genetic factors.<\/p>\n
This form is much less common and may appear during childhood without being linked to obesity or diabetes.
\n6. Rare Medical Conditions
\nRarely, acanthosis nigricans can be associated with certain internal cancers,
\nparticularly stomach (gastric) cancer.
\nThis form usually develops suddenly, spreads quickly, and may involve unusual locations such as the mouth or palms.
\nAlthough this possibility sounds alarming, it’s important to remember that most cases are not related to cancer.
\nCommon Symptoms
\nBesides darker skin, people may notice:
\nThickened skin<\/p>\n
The skin changes themselves are usually harmless.
\nHowever, because acanthosis nigricans may be associated with conditions such as insulin resistance or hormonal disorders, it’s worth discussing with a healthcare professional, especially if the patches are new or changing.
\nTreating the underlying cause often helps improve the appearance of the skin over time.
\nHow Is It Diagnosed?
\nA healthcare provider can often recognize acanthosis nigricans by examining the skin.
\nDepending on your situation, they may
\nrecommend tests such as:<\/p>\n","protected":false},"excerpt":{"rendered":"
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