Squatting for a long time to stand up can giddy be what reason

Squatting for a long time will stand up dizziness, may be related to orthostatic hypotension, hot environment, insufficient blood volume, suffering from nervous system diseases, may cause orthostatic hypotension. If there is no dizziness or other discomfort at ordinary times, generally not too big a problem, if accompanied by other discomfort, should seek medical examination as soon as possible.