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Risk factors
By Mayo Clinic staffFactors that may increase your risk of dermatographia include:
- Other skin conditions. If you have other skin conditions, such as dry skin or dermatitis, you may be more susceptible to dermatographia. Any skin condition that causes a frequent urge to scratch may increase your risk.
- Allergies. If you have a history of allergies, you may be more prone to developing dermatographia. The same immune system response that causes other allergies may also cause dermatographia.
- Heredity. As with other allergies, dermatographia may run in families.
Dermatographia can occur at any age, but it tends to be more common in young adults in their 20s and 30s.
