牛皮癣概述

By:John Barrymore

牛皮癣是一种自身免疫性疾病,可触发多余的皮肤细胞的产生。查看更多皮肤问题的图片
©istockphoto.com/David Newton

You might have seen ads for psoriasis treatments that show the red, blotchy skin that comes from the condition. If you don't like looking at it, imagine living with it.

牛皮癣是一种自身免疫性疾病,这意味着它可以防止免疫系统正确起作用并识别和杀死病原体。当我们的身体正常工作时,我们每分钟散发40,000个皮肤细胞。牛皮癣患者的免疫系统向人体发出故障信号,从而触发过量的皮肤细胞。细胞没有掉落,而是在皮肤上积聚并形成红色,鳞片状斑块[来源:国家牛皮癣基金会]。

广告

没有人确切知道是什么原因引起牛皮癣。但是有些人在遗传上倾向于这种情况,当易感性与触发因素(例如压力或药物)结合时,它会导致牛皮癣。实际上,您可能有一天健康,并在不知不觉中引发xf187手机版牛皮癣爆发。可能有10%的人口在遗传上易于疾病,但实际上只有2%至3%的人才能真正发展出来[来源:国家牛皮癣基金会]。

尽管对牛皮癣知之甚少,但每天都有许多患有这种疾病的人,并且有许多有效的治疗形式。继续阅读以了解有关牛皮癣及其症状的更多信息。

广告

Psoriasis Symptoms and Types

有五种不同类型的牛皮癣,它们都有不同的症状。最常见的类型是斑块牛皮癣,它以白色或银色尺度覆盖的红色斑块的形式表现出来。这些斑块由人体通常脱落的皮肤细胞组成。患有斑块牛皮癣的人经常在肘部和膝盖上形成这些斑块,但它们可以在身体的任何地方形成[来源:国家牛皮癣基金会]。

第二常见的牛皮癣类型,肠牛皮癣,是这种疾病的一种形式,通常从童年开始。这种类型的牛皮癣以小红色颠簸的形式迅速出现,并从颈部覆盖身体。多种疾病会引起肠胃病的攻击,包括上呼吸道感染,链球菌性喉咙,扁桃体炎和压力[来源:国家牛皮癣基金会]。

广告

脓疱性牛皮癣有三种类型:von Zumbusch,棕榈脓疱病和杂经。冯Zumbusch牛皮癣始于痛苦的红色皮肤。脓疱在几个小时内跟随,这些在接下来的两天内干燥和剥离,使皮肤具有釉面外观。这种类型的牛皮癣可以通过某些药物或妊娠触发,并引起发烧,贫血和脱水[来源:国家牛皮癣基金会]。患有冯·祖布施牛皮癣症状的人应该立即去看医生,因为如果没有治疗,这种类型的牛皮癣可能会导致心脏或肺部衰竭[来源:Emedicinexf187手机版Health]。Palmoplantar pustulosis causes pustules on the palms of hands and soles of feet, which turn brown and peel. It occurs mostly in past and current smokers and doesn't necessarily go away when a person quits smoking [source:美国骨病学院]。杂经症是一种极为罕见的脓疱牛皮癣类型,可导致皮肤病变在手指和脚趾上形成。这些病变很痛苦,可能导致指甲畸形,甚至骨结构的变化[来源:国家牛皮癣基金会]。

牛皮癣是疾病的第四种类型,它会影响皮肤折叠的区域,例如腋窝和生殖器。褶皱中形成红色斑块,导致皮肤变得柔软和刺激[来源:国家牛皮癣基金会]。

第五和最罕见的牛皮癣类型是红细胞生成的牛皮癣,会导致蛋白质和液体丧失,从而导致感染,肺炎和充血性心力衰竭。症状包括严重发红,皮肤脱落过多,瘙痒,心率增加和体温波动。经历红皮牛皮癣症状的人应该立即去看医生[来源:国家牛皮癣基金会]。

继续阅读以了解牛皮癣治疗。

广告

牛皮癣治疗

牛皮癣有三种治疗方法,具体取决于病情的严重程度。有局部药物,可以分布在受影响的地区;光疗,使用紫外线来应对疾病。和口服药物,这些药物从内而外与疾病作斗争。在更极端的情况下,可能需要进行治疗的组合,并旋转治疗以防止免疫系统对任何一种药物具有抗性[来源:美国骨病学院]。

局部处理含有类固醇或维生素D3,并通过减慢过量皮肤细胞的生长来起作用。这些治疗可能会引起发痒,干燥的皮肤,它们可能会使衣服,毛巾或与受影响区域接触的任何其他东西[来源:国家牛皮癣基金会]。大多数医生建议在光疗或口服药物之前尝试局部治疗。

广告

Frequent exposure to ultraviolet light can be dangerous, but when used in moderation, phototherapy can be an effective psoriasis treatment. Ultraviolet light penetrates the skin and slows the excessive production of skin cells. There are two types of phototherapy: One uses ultraviolet light B and the other uses ultraviolet light A. UVB can be effective by itself, but UVA must be combined with a light-sensitizing medication [source:国家牛皮癣基金会]。

Oral medications are generally prescribed for severe psoriasis cases when other treatments are ineffective. Most of these medicines work by suppressing the immune system, which can be dangerous because the body is more susceptible to disease [source:国家牛皮癣基金会]。

Is there a cure for psoriasis? Keep reading to find out.

广告

有牛皮癣治疗吗?

There's no cure for psoriasis and it's unknown what causes the disease, but doctors and scientists continue to search for answers in hopes of developing a cure. A promising study by the University of Bonn in Germany recently found that a certain group of enzyme inhibitors, known as metalloproteinase inhibitors, can normalize the overactive skin cells in psoriasis patients and help them maintain healthy levels of cell division [source:科学日报]。But more testing is needed before the treatment can be approved for medical use.

There are several organizations also working to find a psoriasis cure. The non-profit patient advocacy group Psoriasis Cure Now is at the forefront of this effort. Its members raise money for psoriasis research, educate lawmakers about the disease and organize psoriasis walks to raise awareness and money. [source:牛皮癣现在治愈]。

广告

Keep reading to learn how psoriasis patients cope with the disease on a daily basis.

与牛皮癣生活在一起

Although there's no cure for psoriasis, millions of people live with the disease every day. People with mild cases live relatively normal lives, but more severe cases can be debilitating and even life-threatening. But psoriasis can cause more than just physical damage to the skin. Many psoriasis patients also have low self-esteem because their skin can be unsightly and difficult to hide. And many others are diagnosed with depression and feel alienated because people don't understand psoriasis and fear it's a contagious disease. But there are numerous support groups for people with psoriasis that can help them cope with the disease and help them educate others about the condition [source:格里芬]。

总体而言,牛皮癣的关键是适当的诊断,然后进行适当的治疗。要了解有关牛皮癣的更多信息,请查看下一页上的链接。

广告

更多信息

Related HowStuffWorks Articles

  • 美国骨病学院。“Psoriasis." (accessed 07/31/2009)http://www.aocd.org/skin/dermatologic_diseases/psoriasis.html
  • 美国骨病学院。“Palmoplantar Pustulosis." (accessed 8/24/09) http://www.aocd.org/skin/dermatologic_diseases/palmoplantar_pustu.html
  • Beat Psoriasis. "As cool winds blow, psoriasis flares." (accessed 07/31/2009)http://www.beatpsoriasis.com/psoriasis-winter.htm
  • Brigham and Women's Hospital. "Laughing Your Way to a Strong Immune System." July 10, 2008. (accessed 07/31/2009) http://brighamandwomens.staywellsolutionsonline.com/RelatedItems/1,224
  • 卡内基科学中心。“有趣的事实。”(访问07/30/2009)http://www.carnegiesciencecenter.org/bodies/funfacts.pdf
  • Emedicinexf187手机版Health“脓疱病”。(访问8/24/09)http://www.emedicinehealth.cxf187手机版om/pustular_psoriasis/page10_em.htm
  • 格里芬, R. Morgan. "Dealing With the Stigma of Psoriasis." WebMD. June 1, 2008. (accessed 07/30/2009) http://www.webmd.com/skin-problems-and-treatments/psoriasis-8/stigma-of-psoriasis?page=2
  • xf187手机版卫生部门。“关于您的皮肤的事实。”2009年3月4日。(2009年7月30日访问)http://www.healthunit.xf187手机版org/sunsafety/aboutskin.htm
  • 实验室测试在线。“自身免疫性疾病。”2009年7月29日。(2009年7月30日访问)http://www.labtestsonline.org/understanding/conditions/autoimmune.html
  • Mayo Clinic. "Symptoms." Apr. 10, 2009. (accessed 07/30/2009)http://www.mayoclinic.com/health/psoriasis/DS00193/DSECTION=symptoms
  • 国家牛皮癣基金会。“牛皮癣的原因。”(访问07/31/2009)http://www.psoriasis.org/netcommunity/sublearn01_psauses
  • 国家牛皮癣基金会。“Types of psoriasis." (accessed 07/31/2009)http://www.psoriasis.org/netcommunity/learn_types
  • 国家牛皮癣基金会。“治疗牛皮癣。”(访问07/31/2009)http://www.psoriasis.org/netcommunity/sublearn03_mild_nonsteroid
  • 国家牛皮癣基金会。“统计数据。”(访问07/31/2009)http://www.psoriasis.org/netcommunity/learn_statistics
  • 牛皮癣现在治愈。“牛皮癣现在治愈!”(访问07/30/2009)http://www.psoriasis-cure-now.org/
  • 科学日报。“牛皮癣可能的新治疗方法。”2004年8月17日。(2009年7月30日访问)http://www.sciencedaily.com/releases/2004/08/08/040817081007.htm

特色

广告

加载...