Seven months child sleep up in the morning eyelid swelling may be too much water before going to bed, sleeping posture, mosquito bites and so on. 1. Drinking too much water before going to bed: seven months child’s kidney regulation function is relatively poor, if you drink too much water, may lead to these water can not be excreted in a timely manner, thus appearing eyelid swelling. 2. Sleeping posture: the eyelid part of the tissue is relatively loose, the baby sleeps on his back, it is easy to make the liquid accumulation in the eyelid area, which in turn causes the phenomenon of waking up swollen eyes. 3. mosquito bites: baby sleep, by mosquito bites, can also cause eyelid swelling. If the child in addition to eyelid swelling, also appear lower extremity edema, proteinuria and other abnormalities, should be timely consultation, so as not to delay the condition.