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| Complete and comfortable anesthesia of the anus by local infiltration of anesthetics is not easy, and requires long experiences and far advanced techniques. |
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| Local infiltration anesthesia has several important advantages: less operative bleeding, showing accurate anatomy to lead successful operation, fast and safe recovery, quick return to the normal daily life and work. |
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| The local infiltration anesthesia of the anus is described in the medial textbook. Most of the renowned surgeons whom I visited before had used the local anesthetics for hemorrhoidectomy. |
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| Many patients want local infiltration anesthesia because they worry about decreased memory after general anesthesia or sedation, decreased sexual performance and severe headache after spinal anesthesia, even though the evidence is not scientifically clear. |
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| Some patients have got information from news reports about serious or fatal accidents from sedation, general or spinal anesthesia, and they want surgery under local infiltration anesthesia. |
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| Patients can walk with smile immediately after surgery under local infiltration anesthesia. Most of them feel pain-free, go to office or go home the same day after surgery by self-driving, airplane, train or bus. |
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| 中文 
Pain-free or minimal pain surgery
