Final answer:
A fissure in the skin can lead to wound infections or more serious systemic infections by allowing microbes to enter and infect deeper tissues or the bloodstream.
Step-by-step explanation:
Fissures in the skin can lead to several complications. When the skin's physical barrier is disrupted by a fissure, microbes can more easily penetrate and enter deeper tissues where they may find an environment conducive to growth. This can result in wound infections, which are common following injuries that compromise skin integrity, such as punctures or lacerations. Localized infections can occur in structures within the dermis, such as hair follicles and glands, and in severe cases, microbes can enter the bloodstream, leading to systemic infections. Additionally, the presence of skin lesions increases the risk of secondary injuries and infections with other pathogens due to increased pain sensation and vulnerability.