You may have heard the news about how certain batches of imported drywall have caused health problems in a number of households throughout the United States. So far, over 4,000 cases of problematic drywall have been reported in numerous states, according to the Consumer Product Safety Commission. Drywall problems can lead to significant health and safety risks if they're not taken care of as soon as possible. If you want to make sure your home's drywall isn't affected, you can use the following guide to spot telltale signs of problem drywall.