Could you add a picture? Are all the bands equelly intense? Can the band you expected to see be distinguished? Are there any bands in the negative control reaction? I think we need more information.

To answer this question,  data input is required. Multiple bands in PCR may result because, 1) Non specificity of primers 2) DNA contamination 3) Primers/pcr ingredients are contaminated with other primers.

Multiple bands are mostly due to non-specific binding of primers. Hence you may first check the primer specificity by Primer BLAST. Second it low annealing temperature, therefore try to increase annealing temperature so that specificity of the PCR is enhanced. Third reason is too much of DNA or sheared/smeared DNA used PCR. If you are performing DNA QC on gel check how much exactly the DNA is required for reaction and whether it is sheared/smeared as per gel profile.

You have gotten some good feedback.  Optimization of the reaction mixture (component concentrations) is important.  Too much or too little template or reagents can significantly affect the end results.  One example is the MgCl2 concentration.  This can have a big impact.  Also, as previously noted, the cycling conditions can contribute to the end result.  Any "false" or incorrect annealing and extension at the onset is obviously amplified through the cycling.  Hot starts and more stringent conditions may help reduce your secondary products/bands.  Controls (positive and negative) and determining you level of sensitivity can be helpful.  

In case your current cycling conditions are optimial as is, one way for you to optimize your reaction would be to set up a nested or hemi-nested PCR system. Design primer(s) that lie within the product of your first PCR reaction. You can use your initial PCR product (clean up not required) as the template for your second (nested) PCR. This should definitely help you get more specific products.

To find out if you have a contaminant, sequence your products using your PCR primers. If you do have a contaminant, start fresh and make sure you work with your ''no DNA'' (mastermixes, water, polymerase, and primers) and ''DNA'' (template) in two different rooms that is set up like a one-way street (i.e. no working in the ''no DNA'' room once you have worked with DNA). Make sure your product analysis (gels, gel extraction, and sequencing reactions) are all performed in a completely different lab. The more careful you are, the better.

Good luck!