Just a random shower thought.
Mosquito’s proboscis is sharp enough to penetrate your skin. So when you smack it while it is in the process of drawing your blood, isn’t there a chance of its proboscis being forcefully jammed into your skin, leading to some sort of “splinter”? Or does it somehow loses its stiffness the moment it feels the impact?
I’ve never encountered nor heard of such occurrence in my lifetime of killing those buggers, but wondering if such a thing is even possible. If such could happen, I could only imagine the risk associated with having a piece of foreign organic matter being embed in the body
I’d say this is plausible, but not a huge risk. A healthy individual won’t have trouble either breaking it down or expelling the foreign matter when the flesh heals (like wooden splinters often do).
I’m not an expert, though, and I’d love for one to chime in on this subject!