Short Summary
Main recommendation: If you have diabetes, check your skin daily for changes such as blisters, sores, dark patches, and lumps, and report them to your doctor, since many of these signs can indicate poorly controlled blood sugar or insulin resistance. The video links many skin conditions to diabetes and explains how to care for minor cuts, blisters, and rashes at home while watching for infection.
Key Points
- Dark, velvety patches on the neck, under the armpits, or in the groin (acanthosis nigricans) can be an early sign of too much insulin in the body or pre-diabetes.
- Diabetic blisters (bullosis diabeticorum or diabetic bullae) usually appear on the hands, feet, legs, or forearms, are typically painless, and should be reported to a doctor to prevent infection.
- Skin infections are more common and harder to treat with diabetes; they often appear between the toes, around nails, or on the scalp, and may need stronger or longer antibiotics.
- Open wounds on the feet can progress quickly due to poor circulation and nerve damage, so they need prompt medical attention to avoid serious infection or amputation.
- Several other skin signs were linked to diabetes or poor blood sugar control, including granuloma annulare, necrobiosis lipoidica, shin spots, skin tags, and xanthelasma.
Details Worth Noting
- Concrete instructions:
- Check your feet and skin every day yourself rather than relying on a doctor or nurse checking only every three to six months.
- Do not pop or break a blister; gently wash the area with warm water and mild soap, apply antibacterial ointment without popping it, and cover loosely with gauze or cotton bandage.
- Secure dressings with hypoallergenic or paper tape and change the bandage at least once a day.
- Wear a different pair of shoes until a blister heals, especially if your shoes caused it.
- For small cuts and rashes, wash gently with warm water and mild soap, do not use alcohol, apply an antibiotic, cover with gauze or cotton bandage, secure with hypoallergenic paper tape, and change the bandage once a day.
- Keep toes and toenails dry to help prevent fungal infections.
- Check small cuts and rashes frequently to make sure they are not worsening or becoming infected.
- For dry, itchy skin, Dr. Ergin mentions CeraVe as a product he considers good to use.
- Eruptive xanthomatosis appears as reddish-yellow lumps that turn yellowish quickly, often on the buttocks, thighs, elbows, and backs of knees, and typically disappears when diabetes is well controlled.
- Dr. Ergin cites studies suggesting granuloma annulare is seen in about 1% of non-diabetic people versus about 3% of diabetic people, and says recurring cases should prompt a diabetes evaluation.
- Diabetic dermopathy (shin spots) is usually painless brown spots that often fade within 18 to 24 months, though they can be permanent if diabetes is not controlled.
- Many skin tags may suggest too much insulin or type 2 diabetes, and yellowish scaly spots near the eyes (xanthelasma) can indicate high blood fat levels and poorly managed diabetes.
Bottom Line
Skin changes can be an early warning of blood sugar problems, so daily self-checks and prompt medical review of any new blisters, sores, or persistent spots are essential for anyone with diabetes or pre-diabetes. The information here is what the video presents and is not professional medical advice.





