If you or your physician believe you have been injured by a defective mesh product, it is in your best interests to alert the FDA of the same via a formal complaint or adverse report. To file a report, you can: Report the event or injury online. Complete Consumer Reporting Form FDA 3500B and either fax or mail it to the FDA per the instructions. Call the FDA at 1-800-FDA-1088, or If a doctor or healthcare professional reporting the event, completed Form FDA 3500 and either fax or mail it to the FDA per the instructions. (Learn more about hernia mesh adverse events and hernia mesh warning letters to manufacturers.)