absces

An absces (English: abscess) is a localized collection of pus within tissues, organs or confined spaces in the body, typically resulting from a bacterial infection and the host immune response. Pus is composed of dead cells, bacteria and immune cells, and the collection often forms a walled-off cavity surrounded by inflamed tissue.

Common types include cutaneous abscesses (such as boils and carbuncles), dental abscesses, perianal abscesses and internal abscesses in organs like the liver or brain. Predisposing factors include skin breaks, foreign bodies, poor circulation, immunosuppression and chronic conditions such as diabetes.

Clinical features depend on location but frequently include localized pain, swelling, redness, warmth and tenderness; systemic signs such as fever or malaise may accompany more extensive or deep infections. Diagnosis is usually clinical for superficial lesions; imaging (ultrasound, CT, MRI) aids assessment of deeper or complex abscesses. Aspiration and culture of pus can identify causative organisms and guide antibiotic therapy.

Treatment commonly involves drainage of the abscess combined with appropriate antimicrobial therapy when indicated. Superficial abscesses are often managed by incision and drainage performed by a healthcare professional; deeper or organ abscesses may require image-guided drainage or surgical intervention. Complications can include spread of infection, sepsis, fistula formation and scarring. Prevention focuses on wound care, managing risk factors and seeking prompt medical attention for suspicious infections.