Pus
| Pus | |
|---|---|
| Pus with blood coming out of ring finger | |
| Specialty | Infectious disease |
Pus is an exudate, typically white-yellow, yellow, or yellow-brown, formed at the site of inflammation during infections, regardless of cause. An accumulation of pus in an enclosed tissue space is known as an abscess, whereas a visible collection of pus within or beneath the epidermis is known as a pustule, pimple or spot.