| Many species even play beneficial roles producing | | | | arise on any part of the body. |
| antibiotics and foodstuffs. The soil teems with | | | | Erythrasma and Bacterial Infections |
| free-living bacteria that perform many essential | | | | Erythrasma is a superficial skin infection caused by |
| functions in the biosphere, like nitrogen fixation. | | | | corynebacteria that commonly occurs in |
| The skin has the major surface area of all of the | | | | intertriginous spaces. The infected skin is |
| body organs and is the most exposed organ. Our | | | | frequently reddish-brown, may be vaguely raised |
| skin is mass to a number of bacteria. There are | | | | from the surrounding skin and may look the |
| lots of types of bacteria, both good and bad. In | | | | appearance of central clearing. The lesions are |
| fact, most bacterial species cannot cause disease. | | | | largely confluent but may have poorly defined |
| Skin infections can occur on the skin surface or | | | | borders. |
| deeper within the skin tissue. Bacterial Skin | | | | Ecthyma and Bacterial Infections |
| Infections are caused by the presence and | | | | Ecthyma is a deeper version of impetigo that |
| growth of microorganisms that damage host | | | | usually forms on the legs. Ecthyma occurs in |
| tissue. Common bacterial infections of the skin | | | | debilitated persons, such as patients with poorly |
| involve impetigo, folliculitis or furunculosis, simple | | | | controlled diabetes. It causes large boils, crusts, |
| abscesses, erysipelas and other nonnecrotizing | | | | and deep sores that leave scars. |
| cellulitis. | | | | Folliculitis and Bacterial Infections |
| Botulism and Bacterial Infections | | | | Folliculitis is an infection in the hair follicles. It is |
| Botulism is a muscle-paralyzing illness caused by a | | | | inclined to be on surface of the opening of the |
| toxin made by a bacterium called Clostridium | | | | pore or deeper in the tissue. This is most |
| botulinum. Symptoms of botulism comprise double | | | | frequently reason by staphylococcus aureus. A |
| vision, blurred vision, drooping eyelids, slurred | | | | folliculitis looks like small, yellow pustules that are |
| speech, difficulty swallowing, dry mouth and | | | | confined to the hair follicle. The most widespread |
| muscle disadvantage. | | | | form is superficial folliculitis. |
| Cellulitis and Bacterial Infections | | | | Impetigo and Bacterial Infections |
| Cellulitis is a disease of the dermis and | | | | Impetigo is an ordinary infection in kids that may |
| subcutaneous tissue that has poorly bounded | | | | also occur in adolescents. It is generally caused by |
| borders and is usually caused by Streptococcus or | | | | either Staphylococcus aureus or streptococci. |
| Staphylococcus species. Cellulitis commonly occurs | | | | Impetigo is most commonly glance in children |
| near breaks in the skin, such as surgical wounds, | | | | aged two to five years. |
| trauma, tinea infections, or ulcerations. Cellulitis can | | | | |