Can soldering around lead cause lead poisoning?

No unless done often: Soldering is where solder is melted by a hot iron and allowed to cool, thus joining 2 pieces of metal, etc. If this is done rarely, like once in a while, it likely won't cause any side effects, even with lead, but if done often, it might cause lead poisoning as the process might cause some of the lead to be melted, if hot enough. Still, lead has a very high melting point, so it must be very hot.