Swelling may be experienced at any point during pregnancy, but it tends to be noted around the fifth month 22 to 27 weeks and increases while you are in the third trimester. However if you experience sudden swelling in your hands and your face then it could be a sign of Pre Eclampsia. So there are two major causes of swelling in feet:
Physiological Pain during Pregnancy:
Your body retains more fluids during pregnancy. The body produces approximately 50% more blood and body fluids to meet the need of developing a baby. This extra retention of fluids is needed to soften the body, as the baby develops. This extra fluid also helps to prepare the pelvic joints and tissues to open for delivery. During pregnancy two major changes occur in the body, one is circular in the cardiac output and second increase in the blood volume by the end of the first trimester. Further, a small increase may occur in the second trimester. The blood volume increases from the 10th week and reaches a maximum at the 32-week overall increase is up to 30%. Plasma volume increases greater than red cell volume than haemodilution occurs and hemoglobin falls. After 30 to 32 week the cardiac output is dependent on the posture.
Pathological Pain during Pregnancy:
In this group, most common cause of swelling is Pre Eclampsia (PIH). PIH was formerly called toxemia. Pre Eclampsia is a condition that pregnant women develop. It is marked by high blood pressure in women who have previously not experienced high blood pressure before pre eclampstic women will have a high level of protein in their urine and also have swelling in feet, hands, face, and legs also. The BP is more than systolic 140 and diastolic 90 occurring after 20 weeks in women who were hormo tensive before 20 weeks of gestation confirmed by two separate measurements accompanied by proteinuria. Urine protein 300 mg in 24 hours or >300 per liter. If pre eclampsia is undiagnosed can lead to Eclampsia a serious condition that can put your baby and you at risk. When women with pre-Eclampsia have seizers are considered to have Eclampsia. You can protect yourself by learning the symptoms of pre Eclampsia and by seeing your doctor for the regular prenatal case. When the Pre Eclampsia is diagnosed early, it is easier to manage.