If a person wakes up with puffy eyes, how to reduce the swelling needs to be judged according to the actual situation. If one eye is puffy, it may be caused by mosquito bites or drinking too much water before bedtime and sleeping in a side-lying position, so it is necessary to reduce the amount of water drunk before bedtime and to treat the mosquito bites with topical medication in order to reduce the swelling. If both eyes are swollen, the most common is to drink too much water before bed, resulting in bilateral eye swelling, reduce the amount of water before bed can be significantly relieved. Some women can experience puffiness during their menstrual period, and this puffiness can be significantly relieved after they have passed their menstrual period. If these causes are ruled out, systemic pathologies such as heart disease and kidney disease, especially kidney disease, can cause bilateral eye swelling in the morning, when urination can increase the foam in the urine, which does not disappear in a short period of time.