Wounding with Iron
Scholars have said that if one dreams of being wounded by an iron object, such as a knife, it might indicate that their flaws and defects will become apparent.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam
Note: These are traditional scholarly interpretations (ijtihad) drawn from a specific classical source — not a binding religious ruling, fortune-telling, or a prediction of the future.