Is the development of a blood clot in the deep veins of the body. During pregnancy 80% of the cases occur in left leg. The condition is life threatening if left untreated as the clot can break off and travel to blood vessels of the lungs and possibly cause death. Having  DVT is not common in pregnancy, but pregnant women are more likely to develop thrombosis than non-pregnant women of the same age. A clot can appear during any phase of pregnancy and up to six weeks after birth. It is more common if you have previous family history, high blood pressure, smoking, taking birth control pills, dehydration, thrombophilia, severe varicose veins. The patient presents with pain and a heavy feeling in the leg, swelling, redness, tenderness in lower leg, warm skin, rapid heart  and breathing rate. 

Pulmonary embolism (PE) can be developed when a blood clot travels to the lungs and that can be fatal posing symptoms like sudden difficulty breathing, chest pain/tightness, or collapse.  The chance of developing PE is very low if  the DVT is diagnosed and treatment is started. Low Molecular Weight Haprin (LMWH) is an anticoagulant, which prevents the blood clot getting bigger, and is usually used to treat pregnant women with DVT. LMWH is very effective as it does not adversely affect the baby, and it gets dissolved in body easily. LMWH also prevents the woman  from developing PE and getting other blood clots. Self-help of DVT can be  as simple as staying active and wearing a prescribed compression stocking to help circulation in the leg.  It can be prevented by simple exercise (moving leg and walking on and off) during pregnancy, drinking plenty of water, and avoid alcohol and smoking.