Credit card debt is a type of unsecured debt, which means that it is not backed by collateral such as a car or a house. When you use your credit card to make purchases, you are essentially borrowing money from the credit card company, which you are required to pay back with interest. If you don't pay off your balance in full each month, interest will accrue on the remaining balance, which can quickly add up.
One of the biggest problems with credit card debt is that it can have a long-lasting impact on your credit score. Your credit score is a number that reflects your creditworthiness, and it is used by lenders to determine whether or not to approve you for credit. If you have a high amount of credit card debt, it can lower your credit score, which can make it difficult to get approved for loans, credit cards, or even an apartment rental.