Compression therapy devices apply graduated external pressure to limbs via inflatable sleeves, stockings, or wraps to enhance venous/lymphatic return, reduce edema, and prevent DVT in post-surgical, lymphedema, or athletic recovery cases. Intermittent pneumatic compression (IPC) systems (Normatec, Game Ready) use air pumps for sequential inflation/deflation (4-8 chambers, 30-100 mmHg) mimicking muscle pump—20-60 min sessions boost circulation 20-40%. Static options include multi-layer bandages (high stiffness), adjustable Velcro wraps (Circaid), and graduated compression stockings (15-40 mmHg). Benefits: swelling reduction (30-50%), faster healing, pain relief; ideal for varicose veins, sports recovery. Avoid arterial disease, heart failure; start low pressure under supervision.