Formaldehyde can cause cancer and is one of the factors that induce cancer. If the formaldehyde in the environment seriously exceeds the standard, there will be the possibility of cancer in the long term. However, the chance of cancer is also related to the individual’s physical condition, if the physical condition is poor and long-term in the formaldehyde exceeds the standard environment, the chance of cancer will be greater, such as pregnant women, the elderly, infants, children and so on. Long-term formaldehyde in the environment, the first will appear chronic formaldehyde poisoning symptoms, such as dizziness, vomiting, fever and anorexia. Therefore, when the above symptoms occur, you need to go to the regular hospital in time to give targeted treatment, and you need to stay away from the formaldehyde overloaded environment, and give timely measures to eliminate formaldehyde. In addition, for pregnant women, children, infants, the elderly and other people with low resistance, need to pay extra attention to avoid contact with formaldehyde, so as not to cause harm to the body.