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What increases my risk for nummular dermatitis?

Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)
You have an increased risk for nummular dermatitis if you are a male over age 60, especially if you're Asian. No one knows what causes nummular dermatitis. Nor does anyone know why older men have a higher risk for developing this skin condition, which is also known as nummular eczema. However, certain things seem to worsen symptoms of nummular dermatitis, including:
  • dry skin
  • emotional stress
  • skin irritants, which can include wool clothing or overuse of soap
  • changes in temperature
Avoiding these triggers may help you manage nummular dermatitis. Your doctor can give you more advice on your risk and what you can do to help symptoms.

While the exact cause of nummular dermatitis is unknown, there are some factors that may put you at risk. Generally, men are more frequently affected than women, and the most commonly-affected age group is 55 to 65 years old. Women tend to be at a higher risk between 15 and 25 years old. If you or any family members have had allergies, eczema, and other skin conditions, you may be at a higher risk for nummular dermatitis. Also, since dryness can worsen the symptoms, people who live in cold, dry environments may be at risk.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.