If there are nodules in the lungs, the most worrying thing is that they keep getting bigger and bigger, or become malignant and turn into tumors, how to prevent the nodules in the lungs from getting bigger? There are several aspects that need attention: 1, pay attention to the surrounding air, environment, as little as possible to contact pollution or harmful gases, if necessary, in the dusty environment, or when there are some chemical volatile gas need to do a good job of protection, you can wear a mask. 2, when there is a respiratory tract infection should be treated in a timely manner, to prevent the infection to invade the nodules around, if there is an infection around the nodules is easy to become larger, in the infection of So try not to take supplements when you have nodules.