No. Checking your credit score does not lower it. When you check your own credit score or credit report, there is a soft inquiry, which has no effect on your credit score. On the other hand, when a lender checks your credit for the purpose of evaluating an application for a credit card or loan, it can lower your credit score due to a so-called hard inquiry.
Your credit score is meant to reflect your responsibility with credit, so it will only change based on your payment history, credit utilization, credit applications (resulting in hard inquiries), derogatory marks, and years of experience with credit. Unlike these factors that influence credit scores, checking your own credit score is purely informational, so your score will not be affected.
Since checking your credit score doesn’t lower it, you should check often, as doing so will help with your financial planning. If your score is low, for example, you can take steps to improve it before it costs you money. If it’s in good shape, you could potentially qualify for better credit cards and other benefits, thus saving money. And if your score changes unexpectedly, it could be a sign of fraudulent activity. In that case, you should also check your credit report and file a dispute for any items that are fraudulent or inaccurate.
You can check your latest credit score and credit report for free through your WalletHub account.