Mysterious nostril bruising

Patient: So i got home from school and went into my bathroom to pop some zits, after i was done/during the process i found 2 small bruises on the left and right side of my nostrils (the skin that makes them), so whats up with this? they don’t hurt, but I’m not sure if they showed up while i was popping zits or if they were there, there are a dark purple-ish color