If your problem persists then it probably is a problem with your suspension parts. However looking at the wheel can still tell you something about your suspension. For instance you should look at the tread of the tires and whether it is even across the whole width of the wheel. There should be no variations such as low or high spots, however if it is in fact worn more on one side than the other then this may be a problem with your suspension parts or with wheel misalignment. If your wheels are out of line then this is likely a result of your steering parts. It is important to take your car to a garage where they can look into this problem and correct the necessary car parts. If this does not happen then your tire may eventually deflate and it may affect your car.
If the treads show small indentations (called cupping) however, then this is likely a result of your suspension parts and specifically with your shocks. By finding the tire where this is a problem, it is possible to identify the area where this is a problem. You can buy many auto parts online, so at this point you should purchase new shocks for your car and should then have them installed by a trained mechanic or install them yourself. Failing this, if problems continue you should have a mechanic examine your suspension parts.