Post-operative breast surgery for malignancy has a common side effect of seromas, whose formation and drainage requires a special attention to prevent as much as possible and as early as possible to avoid morbidity. How best we can prevent the dead space is the problem. In this study a review of various methods adopted all over the world is reviewed including early discharge of the patient with drain. It is always preferable to remove the drain when the collection of serum is less than 25ml in 24 hours the chance of re accumulation of fluid is less likely. INTRODUCTION: Carcinoma breast has remained the second leading cause of cancer death among women worldwide over the past three decades [1] and contributes significantly to cancer surgical load. Surgical treatment for breast cancer includes breast conservation therapy and mastectomy with or without axillary dissection depending on disease stage. Seroma formation is the most frequent postoperative Side effect seen after mastectomy and axillary surgery with an incidence of 3% to 85%. OBSERVATIONS: TYPE OF SURGERY: Surgical treatment for breast cancer has undergone a paradigm shift from Halstead's radical mastectomy to breast conservation. It has been demonstrated that radical mastectomy increases seroma formation compared with that of simple mastectomy, but the association is inconclusive when radical mastectomy is compared with modified radical mastectomy (MRM). SURGICAL DEVICES: Various electro-mechanical devices are used during surgery to reduce blood loss and operating time. These include electrocautery, laser scalpel, argon diathermy, ultrasonic scalpel, ultrasonic scissors, and vessel sealing systems. All of these devices have been investigated in an effort to reduce seroma formation. Randomized trials have shown that the use of electrocautery for dissecting flaps is significantly associated with increased seroma formation when compared to that of scalpel dissection. However, no individual study has shown a significant effect on seroma formation with or without the use of a laser scalpel, argon diathermy, or an ultrasonic scalpel. Ultrasonic scissors resulted in reduced seroma formation in a randomized controlled trial comparing level I and II axillary dissection using either ultrasound scissors or surgical scissors with ligation. MANAGEMENT OF DEAD SPACE: MECHANICAL DEVICES: Different techniques have been employed to obliterate the dead space (under flaps and the axilla) to reduce seroma formation. CHEMICAL: Fibrin glue.light activated fibrin sealant, and transdermal photo-polymerized adhesive reduce seroma formation after mastectomy in animal models. Use of a fibrinolysis inhibitor was based on the hypothesis that fibrinolytic activity in serum and lymph might contribute to fluid accumulation. SHOULDER MOVEMENT: Shoulder dysfunction is a common complication of mastectomy,and it is necessary to mobilize the shoulder early to prevent this complication. It was thought that early shoulder mobilization led to increased seroma formation and this hypot...