Sergio Garcia Perez
Fluid-filled lesions
First of all, the abscess Is a closed pocket containing pus, its caused by a
bacterial infection. An abscess can appear on the skin or within other structures of
the body
The
cyst Is an abnormal sac containing gas, fluid, or a semisolid material. The term
cyst is also referred to a sac or vesicle elsewhere in the body. The most common
type of skin cyst is a sebaceous cyst.
A pustule also known as a pimple, is a small, circumscribed lesion containing pus.
Circumscribed means contained within a limited area. Pustules can be caused by
acne vulgaris, impetigo, or other skin infections.
Pustules may form when your skin becomes inflamed because of an allergic
reaction to food, environmental allergens, or poisonous insect bites.
However, the most common cause of pustules is acne. Acne develops when the
pores of your skin become clogged with oil and dead skin cells. This blockage
causes patches of skin to bulge, resulting in a pustule. Pustules usually contain
pus due to an infection of the pore cavity. Pustules caused by acne can become
hard and painful. When this occurs, the pustule becomes a cyst. This condition is
known as cystic acne. Pustules are easy to identify. They appear as small bumps
on the surface of your skin. The bumps are usually white or red with white in the
center. They may be painful to the touch, and the skin around the bump may be
red and inflamed.
These areas of the body are common locations for pustules:
shoulders
chest
back
face
