Mild CIN may not require treatment but more severe CIN or persistent mild CIN may need treatment to destroy or remove the area of abnormal tissue (the transformation zone). The main methods are LLETZ (large loop excision of the transformation zone) and cone biopsy. All treatments are carried out through the vagina, and it is usual to have slight bleeding or a discharge for a few days afterwards.
From the 2010 revision of the Complete Home Medical Guide © Dorling Kindersley Limited.
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