Does anyone know what can make someone more susceptible to scarring?

i.e. medical conditions, lacking certain vitamins and minerals etc.

I am wondering because all my scarring basically happened over-night. I noticed one small scar by my nose and then a few days later I noticed it all over my cheeks! I know people will say 'well that one scar probably made you look at your skin more closely' but that's not the case. I was always examining my skin closely multiply times a day.

I was wondering what might have happened to me. Possible something serious to cause this.

Its a bit strange.

Has anyone else experienced this?