Health encyclopaedia - Alphabetical Topic List健康百科全书-按字母顺序排列的主题清单

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Symptoms of B12 deficiency症状B12缺乏

Vitamin B12 is needed by all cells of the body in order to allow them to multiply.维生素B12是所需要的所有细胞的身体，以便使他们能够繁殖。 A shortage of vitamin B12 mainly affects red blood cells, because millions need be made every minute.短缺的维生素B12的主要影响红细胞，因为以百万计需要作出每分钟。 A lack of red blood cells can lead to anaemia.缺乏红血球，可导致贫血。 The common symptoms of anaemia are tiredness, shortness of breath and awareness of the heartbeat (palpitations).共同的症状是贫血，疲倦，呼吸急促和意识心跳（心悸） 。

There is also a type of B12 deficiency anaemia caused by lack of intrinsic factor.此外，还有一类B12缺乏性贫血所造成的，缺乏内在的因素。 This is called pernicious anaemia.这就是所谓的恶性贫血。 A shortage of intrinsic factor means that B12 cannot be absorbed properly.短缺的内在因素是指B12的不能吸收。 Pernicious anaemia has the same symptoms as anaemia, including tiredness, shortness of breath and fatigue.恶性贫血有相同的症状为贫血，包括疲倦，呼吸短促和疲劳。 Other symptoms of anaemia can include:其他的症状，贫血可以包括：

  • Soreness of the tongue,酸痛的舌头，
  • Loss of weight,损失的重量，
  • Pale skin, often with a lemon tint,苍白的皮肤，往往是与一个柠檬色彩，
  • Intermittent diarrhoea,间歇性腹泻，
  • Menstrual problems, and月经问题，
  • Poor resistance to infections.穷人的抗感染。

If the deficiency goes on too long, the nervous system is liable to be affected, causing:如果不足的推移过长，中枢神经系统，即属违法受到影响，造成：

  • Tingling of the fingers and toes,刺痛的手指和脚趾，
  • Muscle weakness,肌肉麻痹，
  • Staggering,惊人的，
  • Tenderness in the calves, and压痛，在犊牛，
  • Confusion.混乱。