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A characteristic feature of the discharge associated with Actinomycosis is that it contains yellow sulfur granules. These granules are actually clusters of bacteria from the Actinomyces genus, which are typically associated with chronic infections. In cases of Actinomycosis, these granules can be found in the pus that is discharged from the affected area, providing a distinctive appearance.

The presence of sulfur granules is particularly notable as they serve as a diagnostic indicator for this condition. Patients often present with localized infections that may include facial swelling or abscesses, and the identification of these granules in laboratory samples helps confirm the diagnosis.

Other features, such as the discharge having a foul odor or containing red blood cells, may be associated with different types of infections but are not characteristic of Actinomycosis. Additionally, clear and colorless discharge is typically associated with other conditions and does not relate to the specific granules indicative of this bacterial infection.