Objective: To observe the effects of the negative drainage on the capsule sclerosis after augmentation mammoplasty. Methods: 193 cases of augmentation mammoplasty were divided into two groups: drainage group (90cases) and non-drainage group (103 cases)

and the negative drainage was performed for the first 48h after operation in the former. The conditions of capsule sclerosis were observed for 1~4 year after augmentation mammoplasty. Results:No infection and hematoma occurred in both groups

and the average drainage volume was 14.6 ml in each breast for the first 24h in the drainage group and the capsule sclerosis decreased markedly after 1~4 year follow-up ( P<0.05). Conclusion: The negative drainage after augmentation mammoplasty is a helpful method which may decrease the capsule sclerosis.