Which of the following is a secondary lesion that may be infectious and requires medical attention?

An ulcer is a type of secondary lesion characterized by a loss of the epidermis and part of the dermis, resulting in an open sore that can be deep enough to expose underlying tissues. Ulcers can become infected due to the exposure of sensitive tissues, creating a risk for complications that may necessitate medical attention.

Secondary lesions, unlike primary lesions, result from changes to primary lesions or from the progression of disease. In the case of ulcers, they can arise from various skin conditions, including infections or chronic inflammation, and their location and the condition of the surrounding skin play a significant role in the risk of infection.

It’s crucial to monitor ulcers closely as they may require various forms of care to resolve both the lesion itself and any associated infections, making it essential to seek medical advice to prevent further health issues.