Prolonged recumbency ,as In elderly after fractures or heart failure etc….
Prolonged use of contraceptive pills.
Intravenous drug abuse.
It is not uncommon that it can occur without an obvious cause.
Swelling of the leg ,sometimes marked,with bluish coloration& sometimes severe pain.
The clot might migrate to the lungs causing shortness of breath.
– Newer drugs as xarelto & paradaxa that do not need the hassle of weekly monitoring. – In severe cases catheter directed lysis of the clot is neede – in cases of fear of pulmonary embolism an IVC filter is needed.