The Medical Information Bureau (MIB) maintains confidential medical information on life insurance applicants obtained during the underwriting process. This information is available only to insurance companies. No one else can look at your MIB file. When you apply for insurance, the insurance company will request information regarding your health history from the MIB. The insurance company will also send information regarding any new medical tests and current health impairments you may have to the MIB. This information will then be available in the future to other insurance companies if you apply for additional life insurance.