Today, as the development of the media, people are affected by the advertisements greatly. When we are walking on the street, we can see the ads everywhere, they are spread by the newspaper, the radio and so on. The most obvious are the ads attached in the buildings. When we see the advertisements, we will be attracted by them and have the strong desire to buy the products. But the negative sides of advertisements will mislead the customers. Some products exaggerate the function, when people use them, they will realize that they are cheated and waste the money. The worst situation is that people use the fake products and get sick seriously, their health is under threat. So we must check out the advertisements before we buy the products. We should ask the doctor or see the customers’ real reaction.