Risk factors for abscess formation include intravenous drug use. Another possible risk factor is a prior history of disc herniation or other spinal abnormality, though this has not been proven. Abscesses are caused by bacterial infection, parasites, or foreign substances. Bacterial infection is the most common cause. Often many different types of bacteria are involved in a single infection. In many areas of the world the most common bacteria present is methicillin-resistant Staphylococcus aureus. Among spinal subdural abscesses, methicillin-sensitive Staphylococcus aureus is the most common organism involved. Rarely parasites can cause abscesses and this is more common in the developing world. Specific parasites known to do this include dracunculiasis and myiasis. Perianal abscess Surgery of the anal fistula to drain an abscess treats the fistula and reduces likelihood of its recurrence and the need for repeated surgery. There is no evidence that fecal incontinence is a consequence of this surgery for abscess drainage. Perianal abscesses can be seen in people with, for example, inflammatory bowel<unk>  (such as Crohn's<unk>  or diabetes. Often the abscess will start as an internal wound caused by ulceration, hard stool, or penetrative objects with insufficient lubrication. This wound typically becomes infected as a result of the normal presence of feces in the rectal area, and then develops into an abscess. This often presents itself as a lump of tissue near the anus which grows larger and more painful with time. Like other abscesses, perianal abscesses may require prompt medical treatment, such as an incision and debridement or lancing. Incisional abscess An incisional abscess is one that develops as a<unk> secondary to a surgical incision. It presents as redness and warmth at the margins of the incision with purulent drainage from it. If the diagnosis is uncertain, the wound should be aspirated with a needle, with aspiration of pus confirming the diagnosis and availing for Gram stain and bacterial culture.
complications of Periodontal disease
complications of Pharyngitis
complications of Tonsillitis
medical cause of Epiglottitis
complications of Frostbite
medical cause of Angular cheilitis
complications of Gonorrhea
complications of Roseola