An abscess is a collection of pus that has built up within the tissue of the body. Signs and symptoms of abscesses include redness, pain, warmth, and swelling. The swelling may feel fluid-filled when pressed. The area of redness often extends beyond the swelling. Carbuncles and boils are types of abscess that often involve hair follicles, with carbuncles being larger. A cyst is related to an abscess, but it contains a material other than pus, and a cyst has a clearly defined wall.

विद्रधि (abscess) शरीर के ऊतक के अन्दर मवाद एकत्र होने से निर्मित होती है। जो विद्रधि त्वचा के निकट स्थित होती हैं उनका लक्षण ये हैं- लाली, दर्द, गरमी, सूजन, आदि।