Chalazion (ICD-10-GM H00.1: Chalazion) is the hailstone. Chalazion describes a usually pea-sized, painless swelling in the area of the eyelid caused by blocked glandular ducts of sebaceous glands in the eyelid with subsequent congestion of secretions.
Chalazion does not affect vision.
Unlike hordeolum (sty), bacteria are not usually the cause of chalazion. The inflammation is not infectious.
Frequency peak: The disease occurs predominantly in adults, in children only rarely.
Course and prognosis: In smaller forms, one first waits for a spontaneous (by itself) regression, which can last several weeks. If this does not occur or if the chalazion is larger, it is surgically removed. If chalazions occur recurrently (recurring), this may be an indication of other diseases such as diabetes mellitus, acne, or rosacea (copper rose).
