| The term stye refers to small painful boil, an inflamed hair follicle or an infection of a sebaceous gland in the edge of the eyelid. |
| The external sty is an infection, usually with Staphylococcus bacteria, of a sebaceous gland in the margin of the eyelid. |
| When the erector muscle contracts, the outer coat hairs stand up to trap the air and cause pressure on the sebaceous gland releasing the suint. |
| This is a chronic inflammation of the hair follicle and sebaceous gland characterized by pustules, comedones, cysts, and scars, and it affects most adolescents. |
| A sty is a small, inflamed swelling of a sebaceous gland on the rim of an eyelid. |
| Excessive sebum production secondary to sebaceous gland hyperplasia is the first abnormality to occur. |
