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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Postpartum thyroiditis ： ウィキペディア英語版 Postpartum thyroiditis Postpartum thyroiditis is a phenomenon observed following pregnancy and may involve hyperthyroidism, hypothyroidism or the two sequentially. It affects about 5% of all women within a year after giving birth. The first phase is typically hyperthyroidism. Then, the thyroid either returns to normal or a woman develops hypothyroidism. Of those women who experience hypothyroidism associated with postpartum thyroiditis, one in five will develop permanent hypothyroidism requiring lifelong treatment. Postpartum thyroiditis is believed to result from the modifications to the immune system necessary in pregnancy, and histologically is a subacute lymphocytic thyroiditis. The process is normally self-limiting, but when conventional antibodies are found there is a high chance of this proceeding to permanent hypothyroidism. Postpartum thyroiditis is a member of the group of thyroiditis conditions known as resolving thyroiditis. ==Signs & Symptoms== The initial phase of hyperthyroid symptoms occurs transiently about two to six months postpartum. Typical symptoms include fatigue, irritability, nervousness, palpitations, and heat intolerance. Hormonal disturbances during this phase tend to occur with lower intensity compared with the hypothyroid phase.〔 As a result, the hyperthyroid phase may pass undetected. The second phase of hypothyroid symptoms is also transient and can occur anytime within the three- to twelve-month period postpartum.〔 Women in this phase experience low energy, poor memory, impaired concentration, carelessness, dry skin, cold intolerance, and general aches and pains. After one year postpartum, euthyroid function resumes. Any case with hypothyroid symptoms extending beyond one year postpartum is not considered postpartum thyroiditis.〔 Women who test positive for thyroid antibodies may be at increased risk of developing symptoms associated with postpartum depression than women without thyroid antibodies. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Postpartum thyroiditis」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.