A sty is an acute infection or inflammation of the secretary glands of the eyelids.
This common infection or inflammation results from blocked glands within the eyelid.
When the gland is blocked, the oil produced by the gland occasionally backs up and extrudes through the wall of the gland, forming a lump, which can be red, painful, and nodular.
Frequently, bacteria can infect the blocked gland, causing increased inflammation, pain, and redness of the eye and even redness of the surrounding eyelid and cheek tissue.
The lump can point externally (outward) or internally (inward).
Frequently, the lump appears with a visible whitish or yellowish spot that looks much like a large pimple.
Usually, one obvious area of swelling is apparent on one lid, but many sties can appear on one or both eyelids simultaneously.
The lump frequently goes away when the blockage of the gland opening is relieved.
Furthermore, the infection goes away when the pus is drained.
Sties are usually caused by obstructed orifices (or openings) of the oil glands in the eyelid.
Very frequently, they are infected by bacteria, most commonly staphylococcal bacteria.
Seborrhea (excessive oily discharge from the glands) may increase the likelihood of developing one of these Eye Infections.
Certain factors can contribute to the blockage of the glands:
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