Should I have my impacted wisdom tooth extracted if it's black but not painful?

There's no need to extract wisdom teeth just because they appear dark if there's no pain. If there is no cavity and the discoloration is merely surface-level pigmentation, with good occlusion of the wisdom tooth, extraction is not recommended—simply remove the dark pigmentation from the tooth surface to restore its natural color. However, if the wisdom tooth is impacted and presses against adjacent teeth, creating gaps where food debris easily accumulates, the neighboring tooth may eventually develop cavities; in such cases, extraction is advisable. When a wisdom tooth turns black due to decay, it's important to remove the decayed tissue and perform a filling to prevent further progression of the cavity into conditions like pulpitis or apical periodontitis.