Dizziness after squatting for a long time may be related to vascular sclerosis, reduced venous return, vasovagal reflex and heart valve disease.
1. vascular sclerosis: vascular sclerosis leads to poor elasticity, once squatting for a long time because of the sudden change of position and cause insufficient cerebral perfusion, causing dizziness, and even fainting symptoms.
2. Reduced venous return: squatting for a long time because of the sudden change of position and the reduction of venous return, resulting in a decrease in the amount of blood returned to the heart as well as changes in cardiac hemodynamics, resulting in insufficient cerebral perfusion, inducing dizziness.
3. Vasovagal reflex: squatting for a long time may cause vasovagal reflex and vasodilatation, inducing a decrease in the amount of return blood to the heart and insufficient cerebral perfusion, causing dizziness.
4. Heart valve disease: heart valve closure insufficiency, reflux and pumping insufficiency, squatting for a long time leads to more blood can not flow back into the heart, and then the brain blood supply is insufficient to appear dizziness.
It is recommended that patients need to go to a regular hospital to receive relevant examinations, according to the results of the examination, under the guidance of specialized doctors to actively receive treatment.