As millions of Americans prepare to celebrate the Fourth of July, safety experts are warning the holiday brings a sharp increase in emergency room visits.

A new study by Nursa estimates more than 47,000 people sought emergency care during last year’s Independence Day holiday, with fireworks causing many of the injuries.

While neither Indiana nor Michigan ranked among the most dangerous states, they both were ranked in the top 28 most dangerous, and experts still urge residents to leave fireworks to professionals, avoid drinking and driving, stay hydrated, wear sunscreen and keep a bucket of water nearby when using fireworks.

You can visit Nursa for the full study.