Bacterial Example of cellulitis showing 3+ edema of left leg Bacterial<unk> s affected about 155 million people and cellulitis occurred in about 600 million people in 2013. Bacterial<unk> s include: *Cellulitis, a diffuse inflammation of connective tissue with severe inflammation of dermal and subcutaneous layers of the skin.Further, cellulitis can be classified based into purulent and non-purulent cellulitis, based on the most likely causative agent and the symptoms presentation. Purulent cellulitis is often caused by Staphylococcus aureus, including both methicillin-sensitive (MSSA) and methicillin-resistant S. aureus (MRSA). Non-purulent cellulitis is most often associated with group A beta-hemolytic streptococci, such as Streptococcus pyogenes. In rare cases, the infection can progress into necrotizing fasciitis, a serious and potentially fatal infection. * Erysipelas, an acute infection of the deep epidermis often with lymphatic spread, almost exclusively caused by beta-hemolytic streptococcus bacteria. * Folliculitis, is a skin condition in which hair follicle, located in the dermal layer of the skin, becomes infected and inflamed. It is predominately caused by bacterial infections, especially Staphylococcus aureus, leading to superficial bacterial folliculitis. Other causative agents of folliculitis include fungi (most commonly Malassezia species), viruses (such as herpes simplex virus), and mites (Demodex species). * Impetigo, a highly contagious ABSSSI (acute bacterial skin and skin structure infection) common among pre-school children, primarily associated with the pathogens S. aureus and S. pyogenes. Fungal Fungal<unk> s may present as either a superficial or deep infection of the skin, hair, and/or nails. Mycetoma are a broad group of fungal infections that characteristically originate in the skin and subcutaneous tissues of the foot. If not treated appropriately and in a timely fashion mycetoma infections can extend to deeper tissues like bones and joints causing osteomyelitis. Extensive osteomyelitis can necessitate surgical bone resections and even lower limb amputation. As of 2010, they affect about one billion people globally. Parasitic Parasitic infestations of the skin are caused by several phyla of organisms, including Annelida, Arthropoda, Bryozoa, Chordata, Cnidaria, Cyanobacteria, Echinodermata, Nemathelminthes, Platyhelminthes, and Protozoa. Viral Virus-related cutaneous conditions caused by these obligate intracellular agents derive from both DNA and RNA viruses.
Skin infection
Skin and skin structure infection
Pigmentation disorder
Gastrointestinal disease
Precancerous condition
Dental plaque
Brain damage
Effects of flooding on skin