What are open lesions on the skin that are accompanied by pus and loss of skin depth known as?

Open lesions on the skin that are accompanied by pus and a loss of skin depth are classified as ulcers. Ulcers involve a disruption of the skin's surface, leading to a loss of tissue depth, which can result in significant pain and risk for infection. The presence of pus indicates a possible infection or inflammation in the area, which is typical in the case of ulcers.

Blisters are raised areas filled with fluid that do not involve a loss of skin depth, so they do not fit the description of an ulcer. Pustules are small bumps on the skin that contain pus as well but are not characterized by the depth of tissue loss seen in ulcers. Scabs are crusts that form over healing wounds, and while they may cover ulcerated areas, they do not describe the underlying condition itself. Thus, identifying the correct term for open lesions with pus and skin depth loss leads directly to the understanding that ulcers is the appropriate classification.