Pyoderma means any skin disease with pus filled lesions. These include superficial bacterial infections such as impetigo, impetigo contagiosa, ecthyma, folliculitis, Bockhart's impetigo, furuncle, carbuncle, tropical ulcer.

Pyoderma is caused by the bacterial infection. It results in a painful swollen area on the skin caused by an accumulation of pus and dead tissue.

Most human infections are due to staphylococci, notable for the bacteria's ability to produce coagulase, an enzyme that can clot blood. Almost any organ system can be infected by S. aureus.

Skin infections tend to be recurrent in many patients and often may spread to other family members. Systemic factors that lower resistance commonly are detectable, including:-diabetes, obesity, disorders, malnutrition and immunosuppression.

Sign & symptoms – they present as bumpy, red, pus-filled lumps around a hair follicle that are tender, warm, and very painful. They range from peasized to golf ball-sized.

A yellow or white point at the center of the lump can be seen when the boil is ready to drain or discharge pus. In a severe infection, an individual may experience fever, swollen lymph nodes, and fatigue. Treatment includes topical and systemic antibiotics. If untreated, it can lead to serious complications.