Getting loans with bad credit is not entirely unheard of. There are some loans that can be obtained by people with even the worst credit scores. However, these loans will usually be at a much higher interest rate. If you have bad credit but own a piece of real property or some other type of collateral then you may be able to get a secured loan that will have a lower interest rate.
The problem with getting loans with bad credit is that there are not as many options available to you. One thing you may want to do rather than choose loans with bad credit would be to try and do what you can to repair your credit prior to applying for the loan. If your issues are mostly due to overdue credit card bills or debt then perhaps you should look into a credit card debt relief program [Credit Card Debt Relief Act] to help you clear some of the debt up and repair your credit score slightly.
It is a lot easier to get a loan with decent credit than it is with bad credit. If whatever it is you are trying to get the money for can be postponed for a few months then you may have time to wipe away some of the mess that is on your credit report before asking for the loan.
Obviously there will be situations which will require you to get money right away for emergencies but if you are trying to get the loan for remodeling or something that may actually be able to wait then repairing your credit first is the best option. If the money is for school then there are also some government grants available to people who meet specific income qualifications that never need to be repaid so that is something else to look into.