Opening several credit accounts in a short amount of time can appear risky to lenders and negatively impact your credit score. Before you take out a loan or open a new credit card account, consider the effects it could have on your credit scores. Know too, that when you're buying a car or looking around for the best mortgage rates, your inquiries may be grouped and counted as only one inquiry for the purpose of adding information to your credit report. In many commonly-used scoring models, recent inquiries have greater effect than older inquiries, and they only appear on your credit report or a maximum of 25 months.
If you find information that is incorrect, you can file a dispute. Remember too, that items on your credit report that you don't recognize could also be potential signs of fraudulent activity — someone working to secure credit in your name for their own use. Make sure you're clear on items that could potentially be fraudulent, versus those that may simply be inaccurate.