Risk Factors of Abscess
Abscesses can be caused by minor breaks and punctures of the skin, obstruction of sweat glands and oil (sebaceous) glands, and inflammation of hair follicles. They contain dead cells, bacteria, and other debris, which causes inflammation and pain.
Common bacteria, such as staphylococci, are the most common cause, although the bacillus responsible for tuberculosis is an important abscess-forming type.
Fungal infections sometimes cause abscesses, while amoebae (single-celled protozoal parasites) are an important cause of liver abscesses.
The infection usually reaches an organ via the bloodstream or penetrates tissues under the skin via an infected wound or bite.
People with weakened immune systems may be more prone to abscesses or may have more severe ones.
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