Skin Changes in Diabetes: What to Know

Diabetes affects your body in many ways, including changes to your skin that can appear before blood sugar problems become noticeable. Understanding these skin changes helps you spot early warning signs and manage your condition more effectively.

Why Diabetes Affects Your Skin

High blood glucose levels can damage small blood vessels, reducing circulation to the skin, which affects healing. This can cause your skin to become dry and slower to heal, while proteins in the skin may become stiff and thick, leading to a yellowish, waxy appearance. 

Diabetes can also cause nerve damage (neuropathy), reducing your ability to feel injuries like cuts or blisters, which may go unnoticed until they become serious. Weakened immune function increases the likelihood of bacterial and fungal infections.

Common Diabetic Skin Conditions

People with diabetes are more prone to various skin conditions, ranging from minor appearance changes to infections requiring medical attention. 

  • Acanthosis nigricans: Dark, velvety patches often found in skin folds like the neck, armpits, or groin, usually a sign of insulin resistance.
  • Diabetic dermopathy: Light brown, scaly patches on the shins, resembling age spots, but linked to changes in blood vessels.
  • Digital sclerosis: Thick, waxy skin on the hands and fingers that can limit movement.
  • Necrobiosis lipoidica: Yellow or red patches with a shiny surface, typically on the lower legs, that may develop into open sores.
  • Skin tags: Small, benign growths that are more common in people with diabetes, especially those with insulin resistance. These growths typically appear in areas where skin rubs together, such as the neck, underarms, and groin.

Recognizing these conditions early can help manage blood sugar levels and prevent complications.

Infection Risks and Warning Signs

People with diabetes are more prone to skin infections because elevated blood glucose creates an environment where bacteria and fungi can thrive. These infections can escalate quickly if left untreated, so it’s important to recognize the early signs.

  • Bacterial infections: These often start as red, swollen, warm areas that may develop pus or show red streaks extending from the site of infection.
  • Fungal infections: Common in warm, moist areas such as between the toes, under the breasts, or in skin folds, these infections cause itching and may result in white or scaly patches.
  • Slow-healing wounds: Wounds that remain open for more than a few days, especially on your feet, should be evaluated by a doctor immediately.
  • Cellulitis: This is characterized by spreading redness, warmth, and swelling, sometimes accompanied by fever or a general feeling of illness.

Preventive Measures for Skin Health in Diabetes

Maintaining good skin health is crucial for individuals with diabetes. Here are some steps to reduce the risk of developing skin problems:

  • Keep your skin moisturized: Dry skin is more prone to irritation and infection. Use a gentle, unscented moisturizer regularly, especially in colder or drier environments.
  • Practice good hygiene: Clean your skin daily with mild soap and water. Dry your skin thoroughly, especially in skin folds, to reduce the risk of fungal infections.
  • Wear loose, breathable clothing: Tight clothing or synthetic fabrics can cause friction, which can lead to skin irritation or the development of skin tags.
  • Monitor your blood sugar levels: Keeping your blood sugar within the target range can help prevent many diabetes-related skin conditions.

It is important to understand the causes of skin issues and the steps for prevention related to changes in blood sugar levels. 

Conclusion

Skin changes can often signal issues with diabetes and blood sugar control, so being aware of these signs is key to managing your health. Regular skin care, daily inspections, and addressing concerns promptly can help prevent complications.

If you notice persistent skin changes, slow-healing wounds, or signs of infection, consult your endocrinologist for early intervention, which can lead to better outcomes. 

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Dr Ben Ng

  • Senior Consultant Endocrinologist

MBBChBaO |  MRCP (Edin) |  CCT – Diabetes and Endocrinology (GMC) |  CCT – General Internal Medicine (GMC) |  MD (Hons) |  FAM (Singapore) | 

As a senior consultant endocrinologist with over 20 years of clinical experience, Dr Ben Ng provides comprehensive care for patients managing various endocrine conditions. His expertise includes the diagnosis and treatment of diabetes, thyroid disorders, obesity, and a range of other metabolic and endocrine conditions.

  • Dr Ben Ng Jen Min graduated from the Queens University of Belfast Northern Ireland, United Kingdom (UK).
  • He completed his postgraduate training with the certificate of completion of training (CCT) from the Royal College of Physicians (UK) with dual accreditation in diabetes and endocrinology and in general internal medicine.
  • In 2010, he was awarded an MD with honours by the University of Hull, UK, in recognition for his research in diabetes mellitus
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Dr Donovan Tay

  • Senior Consultant Endocrinologist

MBBS (Singapore) |  MRCP (UK) |  M.Med (Singapore) |  FAMS (Endocrinology) |  MCI | 

As a senior consultant endocrinologist with over 20 years of clinical experience, Dr. Donovan Tay provides comprehensive care for patients managing various endocrine conditions. His expertise includes the diagnosis and treatment of diabetes, thyroid disorders, osteoporosis, and a range of other metabolic and endocrine conditions.

  • Dr. Donovan Tay graduated from the National University of Singapore (NUS) and obtained his membership in the Royal College of Physicians (UK), Master of Medicine (NUS), and Master of Clinical Investigation (NUS).
  • After completing training in endocrinology, he was conferred as a Fellow of the Academy of Medicine, Singapore (FAMS).
  • He further specialised in endocrinology with a fellowship at the prestigious Columbia University Medical Centre in New York City.
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    Image Assurance clinic location

    Mount Elizabeth Novena
    38 Irrawaddy Road #04-28
    Singapore 329563

    Image Assurance clinic tel (8)

    +65 6334 3273 (fax)

    Image Assurance clinic hour

    Weekdays:
    8:30 AM — 12:00 PM
    2:00 PM – 4:30 PM
    Saturdays: 8:30 AM – 11:30 AM
    Sundays & PH: CLOSED