If you’ve got psoriasis, you may have experienced something known as the Koebner phenomenon, in which lesions form at the site of a skin injury, such as a cut or burn. Statistics suggest that 25 to 30 ...

For some people with psoriasis, even the tiniest pinprick or a bite from a mosquito can trigger plaques to appear in new places. Anytime your skin is hurt or irritated, you can get a new patch of ...

This page lists all known medications that could potentially lead to 'Koebner phenomenon' as a side effect. It's important to note that mild side effects are quite common with medications. The ...

An otherwise healthy 18-year-old man presented with skin lesions that had appeared on 2-week-old tattoos on his forearms. The lesions were neither itchy nor painful. Physical examination showed ...

A 14-year-old girl who had nonsegmental vitiligo on her face, trunk and extremities for more than 1 year presented for consultation on new areas of abdominal depigmentation. Two months earlier, she ...