A stye (also called a hordeolum) is a small, red, painful lump that grows from the base of your eyelash or under the eyelid. Most styes are caused by a bacterial infection. There are two kinds of styes:
- External hordeolum: A stye that begins at the base of your eyelash. Most are caused by an infection in the hair follicle. It might look like a pimple.
- Internal hordeolum: A stye inside your eyelid. Most are caused by an infection in an oil-producing gland in your eyelid.
You can also get a stye if you have blepharitis. This is a condition that makes your eyelids at the base of the eyelashes red and swollen.
When you first get a stye, your eyelid is probably red and tender to the touch. Your eye may also feel sore and scratchy.
Additionally, if you get a stye it often means your eyelid's oil gland have thick oil and you might get another. It is strongly encouraged to maintain good lid hygiene as it won't move the one you have now but it might help prevent your next episode.