Does scorpion sting usually cause many symptoms?

Depends on type of. Scorpion ; age/ health of victim. May be a minimal reaction. Symptoms from scorpion stings can be quite variable: there can be pain or numbness at the bite site. Heart rate and; respiratory rate may increase along with ^ blood pressure, weakness ; twitching of muscles.In the us the scorpion that is likely to cause the most problems is called the bark scorpion.
They can. They can cause various symptoms. They aren't dangerous to adults, but they do have venom that can cause various symptoms and pain. It typically resolves over time without intervention. Small children can have some complications, so they need to get checked out after a sting.
It can. Depending on the species of scorpion will determine the severity, symptoms and treatment for the sting. The symptoms lists are long and complex.