Many types of loans exist, but the two main categories are secured and unsecured. Secured loans require collateral, such as a house or car, which can be seized if the borrower fails to repay the loan. Examples of secured loans include mortgages and auto loans. On the other hand, unsecured loans do not require collateral and are based solely on the borrower's creditworthiness and ability to repay the loan. Examples of unsecured loans include personal loans and credit cards. It is important to consider your financial situation and needs before deciding which type of loan is right for you.