[header] How to tell if your ear is starting to drain [title] Assess your risk. [step] If you notice any subtle changes in hearing, assess whether this could be a warning sign of a perforated eardrum. Figure out whether or not you're at risk for a perforated eardrum. 
[substeps] If you've had any ear infections recently, particularly a middle ear infection, you are at an increased risk for a perforated eardrum. Pressure from the fluid buildup associated with ear infections in this region can press against an eardrum, causing a rupture.