As the others have said, you didn't provide enough information for anyone to properly answer your question.
Here's what I would suggest. First, review the shot using the information in the EXIF file.
I'm going to assume that you're just getting started, don't know some of the basics. The EXIF file is information about the particular shot that is attached to the image by the camera when the shot is taken. You will need software that will let you read that information.
The software that came with your camera will probably do the job.
If you're using a PC I highly recommend that you download a free copy Irfanview at www.irfanview.com
. Using Irfanview, go to 'File' and 'Open' the image, click on 'Image' and then on 'Information', then click on 'EXIF'. When you do so you will see the resolution, the compression, the aperture, the shutter speed, date/time and much more for that particular photo.
Then when you ask a question you can ask "I shot at 1200x1600 resolution, f 2.8, 1/500th, etc."
Second, open an account at pBase, Yahoo Photos, or any other posting site and post the picture in question. Then you can point people to the image so that they can see what you are talking about. You won't have to rely on your ability to describe something that you might not understand all that well.
BTW, Neat Image might be the solution. You can download a free, limited function version that works extremely well to clean up noisy shots.