Can injuries to the skin be painless?

(INSERM (Institut national de la santé et de la recherche médicale)) Inserm researchers and their collaborators have studied lesions in patients with Buruli ulcer, a tropical disease. They show that, despite the extent and severity of these wounds, they are less painful than others that seem relatively minor (e.g. scratches, low-degree burns). They discovered an analgesic mechanism that limits the transmission of pain signals to the brain that may be useful in developing new drugs for pain relief.
Source: EurekAlert! - Infectious and Emerging Diseases - Category: Infectious Diseases Source Type: news