 Since signs and symptoms of DVT and PTS may be quite similar, a diagnosis of PTS should be delayed for 3–6 months after DVT diagnosis so an appropriate diagnosis can be made.Prevention of PTS begins with prevention of initial and recurrent DVT.For people hospitalized at high-risk of DVT, prevention methods may include early ambulation, use of compression stockings or electrostimulation devices, and/or anticoagulant medications.