Onychoschizia

Onychoschizia, also known as nail splitting and brittle nails, is a splitting of the free-edged tip of the nail.[1] There is also often a longitudinal split in addition to the separation of keratin layers.[2]

Cause

Frequent hand-washing is the usual cause, but it is also part of normal ageing.[3] Manicures, nail polish and remover, nail biting, and repeated trauma such as typing, can contribute to nail splitting.[1] Dehydration likely plays a role.[3] Nutritional deficiencies that can result in nail splitting include iron, selenium, and zinc.[1] Some skin diseases such as psoriasis and lichen planus may feature such nails.[3]

Diagnosis

Diagnosis is by its appearance, but sometimes blood tests are required to look for iron deficiency, thyroid problems, and kidney problems.[1]

Treatment

Treatment is by discontinuing nail polish and applying moisturiser.[2] An acceptable alternative is gel nails.[2] Some favourable response has been reported with biotin if the person is deficient in vitamin B7.[1] It is not routinely given.[1]

Epidemiology

It is common among women and occurs in almost a third of newborns.[2]

Other animals

It also occurs in hooved animals such as horses.[4]

See also

References

  1. ^ a b c d e f Sloan, Brett (2022). "16. Multiple nail: nail splitting". In Waldman, Reid A.; Grant-Kels, Jane M. (eds.). Dermatology for the Primary Care Provider. Philadelphia: Elsevier. pp. 277–278. ISBN 978-0-323-71236-1.
  2. ^ a b c d James, William D.; Elston, Dirk; Treat, James R.; Rosenbach, Misha A.; Neuhaus, Isaac (2020). "33. Diseases of the skin appendages". Andrews' Diseases of the Skin: Clinical Dermatology (13th ed.). Edinburgh: Elsevier. p. 785. ISBN 978-0-323-54753-6.
  3. ^ a b c Johnstone, Ronald B. (2017). "2. Diagnostic clues and "need-to-know" items". Weedon's Skin Pathology Essentials (2nd ed.). Elsevier. p. 31. ISBN 978-0-7020-6830-0.
  4. ^ Colombo, Victor E.; Gerber, Françoise; Bronhofer, Max; Floersheim, George L. (December 1990). "Treatment of brittle fingernails and onychoschizia with biotin: Scanning electron microscopy". Journal of the American Academy of Dermatology. 23 (6): 1127–1132. doi:10.1016/0190-9622(90)70345-i. PMID 2273113.

Read other articles:

Древнедатский язык Самоназвание dansk tunga Страны Дания Общее число говорящих 0 Статус Мёртвый язык Вымер в начале XVI века развился в датский язык Классификация Категория Языки Евразии Индоевропейская семья Германская ветвь Скандинавская группа Континентальная подгруппа ...

 

John Ernest IAdipati Sachsen-WeimarBerkuasa1605–1620PendahuluJohannPenerusWilhelmInformasi pribadiKelahiran(1594-02-21)21 Februari 1594AltenburgKematian6 Desember 1626(1626-12-06) (umur 32)Sankt Martin, HungariaWangsaWangsa WettinAyahJohann, Adipati Sachsen-WeimarIbuDorothea Maria dari AnhaltAgamaLutheran Johann Ernst I, Adipati Sachsen-Weimar (21 Februari 1594 – 6 Juli 1626), adalah adipati Sachsen-Weimar. Ia adalah anak sulung John II, Adipati Sachsen-Weimar dan Dorot...

 

Chronologies Données clés 2006 2007 2008  2009  2010 2011 2012Décennies :1970 1980 1990  2000  2010 2020 2030Siècles :XIXe XXe  XXIe  XXIIe XXIIIeMillénaires :Ier IIe  IIIe  Chronologies géographiques Afrique Afrique du Sud, Algérie, Angola, Bénin, Botswana, Burkina Faso, Burundi, Cameroun, Cap-Vert, République centrafricaine, Comores, République du Congo, République démocratique du Congo, Côte d'Ivoire, Djibouti, Égypte, �...

Questa voce sull'argomento contee dell'Illinois è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Contea di Hamiltoncontea LocalizzazioneStato Stati Uniti Stato federato Illinois AmministrazioneCapoluogoMcLeansboro Data di istituzione1821 TerritorioCoordinatedel capoluogo38°04′48″N 88°32′24″W / 38.08°N 88.54°W38.08; -88.54 (Contea di Hamilton)Coordinate: 38°04′48″N 88°32′24″W / 38.08°N 8...

 

Навчально-науковий інститут інноваційних освітніх технологій Західноукраїнського національного університету Герб навчально-наукового інституту інноваційних освітніх технологій ЗУНУ Скорочена назва ННІІОТ ЗУНУ Основні дані Засновано 2013 Заклад Західноукраїнський �...

 

此条目序言章节没有充分总结全文内容要点。 (2019年3月21日)请考虑扩充序言,清晰概述条目所有重點。请在条目的讨论页讨论此问题。 哈萨克斯坦總統哈薩克總統旗現任Қасым-Жомарт Кемелұлы Тоқаев卡瑟姆若马尔特·托卡耶夫自2019年3月20日在任任期7年首任努尔苏丹·纳扎尔巴耶夫设立1990年4月24日(哈薩克蘇維埃社會主義共和國總統) 哈萨克斯坦 哈萨克斯坦政府...

1950 film Who Is This That I Love?Directed byGéza von BolváryWritten byHugo Maria Kritz (novel)Hans Fritz BeckmannProduced byFranz SchierWilhelm SperberStarringJester NaefeAdrian HovenIván PetrovichCinematographyFranz WeihmayrEdited byFriedel BuckowMusic byTheo MackebenProductioncompanyMerkur-FilmDistributed byHerzog-FilmverleihRelease date 15 November 1950 (1950-11-15) Running time100 minutesCountryWest GermanyLanguageGerman Who Is This That I Love? (German: Wer bist du, de...

 

Overview of crime in South Africa A graph of South Africa's murder rate (annual murders per 100,000 people) spanning the century from 1915 to 2022. The murder rate increased rapidly towards the end of Apartheid, reaching a peak in 1993. It then decreased until bottoming out at 30 per 100,000 in 2011, but steadily increased again to 41 per 100,000 in 2021 after a brief drop in 2020. More than 500,000 people have been murdered in South Africa since 1994 [1][2][3][4&#...

 

Lower house of the legislature of Antigua and Barbuda House of RepresentativesTypeTypeLower House of the Parliament of Antigua and Barbuda LeadershipSpeakerSir Gerald Watt KC Deputy SpeakerRobin Yearwood StructureSeats17Political groupsHis Majesty's Government   Labour (9) Opposition   UPP (6)   BPM (1)   Independent (1) Length of term5 yearsElectionsVoting systemFirst-past-the-postLast election18 January 2023Meeting placeAntigua and Barbuda Parliament Building, Saint John...

Typically state-sponsored migration to the Xinjiang region This article's lead section may be too short to adequately summarize the key points. Please consider expanding the lead to provide an accessible overview of all important aspects of the article. (February 2018) Part of a series on the History of Xinjiang Ancient period Tocharians Yuezhi Xiongnu Western Regions (Han Protectorate; Chief Officials) Kingdom of Khotan Former Liang Former Qin Later Liang Western Liang Gaochang Rouran First ...

 

Chemical compound with formula NaOH This article is about the chemical compound. For the commercial product, see Lye. Sodium hydroxide   Sodium, Na  Oxygen, O  Hydrogen, H Names IUPAC name Sodium hydroxide[3] Other names AscariteCaustic sodaLye[1][2]Soda lyeSodium hydrateWhite caustic[3] Identifiers CAS Number 1310-73-2 Y 3D model (JSmol) Interactive image ChEBI CHEBI:32145 Y ChemSpider 14114 Y ECHA InfoCard 100.013....

 

Alco-GEThe RS-1 was a highly successful Alco-GE model.Company typePartnershipIndustryLocomotiveFounded1940Defunct1953MembersAmerican Locomotive Company and General Electric Alco-GE was a partnership between the American Locomotive Company and General Electric that lasted from 1940 to 1953.[1] Their main competitor was EMD. Arrangement Alco produced locomotive bodies and prime movers while GE supplied the electrical gear. ALCo had previously partnered with GE and Ingersoll-Rand to prod...

اضغط هنا للاطلاع على كيفية قراءة التصنيف الناملاتالعصر: Early Miocene–Recent قك ك أ س د ف بر ث ج ط ب ن المرتبة التصنيفية فصيلة[1][2]  التصنيف العلمي النطاق: حقيقيات النوى المملكة: حيوانات الشعبة: الحبليات الشعيبة: الفقاريات العمارة: رباعية الأطراف الطائفة: الثدييات الطويئف�...

 

Not to be confused with Tanis.Place in Port Said, EgyptTennis ⲑⲉⲛⲛⲉⲥⲓTennisLocation in EgyptCoordinates: 31°12′N 32°14′E / 31.200°N 32.233°E / 31.200; 32.233Country EgyptGovernoratePort SaidTime zoneUTC+2 (EST) Tennis or Tinnīs (Egyptian Arabic: تنيس, Coptic: ⲑⲉⲛⲛⲉⲥⲓ[1]) was a medieval city in Egypt which no longer exists. It was most prosperous from the 9th century to the 11th century [2] until its abandonm...

 

Questa voce sull'argomento fisici olandesi è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Simon van der Meer Premio Nobel per la fisica 1984 Simon van der Meer (L'Aia, 24 novembre 1925 – Ginevra, 4 marzo 2011) è stato un fisico olandese. Biografia Specializzato in acceleratori di particelle ha ideato il metodo del raffreddamento stocastico nei collider, che ha reso possibile al gruppo di ricerca UA-1 guidato da Carlo Rubbia, la scoperta dei bo...

Русудан Гоциридзе Имя при рождении груз. რუსუდან გოცირიძე; Дата рождения 8 февраля 1975(1975-02-08) (49 лет) Место рождения Тбилиси, Грузинская ССР, СССР Страна  Грузия Род деятельности священница Награды и премии Международная женская премия за отвагу (2014)  Меди...

 

Cette liste est une ébauche concernant l’histoire, le catholicisme et le Trentin-Haut-Adige. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants. Blason de l'archidiocèse de Trente. Ceci est une liste des évêques et archevêques de l'archidiocèse de Trente. En 1027, l'empereur confie le comté de Trente, ainsi que les comtés de Botzen et de Vintschgau, à l'évêque de Trente et érige la principauté ainsi f...

 

State in Central Asia from 1978 to 1992 This article is about the state that existed from 1978 to 1992. For other uses, see Afghanistan (disambiguation). Democratic Republic of Afghanistan(1978–1987)د افغانستان ډموکراتيک جمهوريت (Pashto)جمهوری دموکراتیک افغانستان (Dari)Republic of Afghanistan(1987–1992)د افغانستان جمهوريت (Pashto)جمهوری افغانستان (Dari)1978–1992 Top: Flag(1978–1980)Bo...

  لمعانٍ أخرى، طالع أورورا (توضيح). أورورا   الإحداثيات 39°27′06″N 97°31′49″W / 39.4517°N 97.5303°W / 39.4517; -97.5303   [1] تقسيم إداري  البلد الولايات المتحدة[2]  التقسيم الأعلى مقاطعة كلاود  خصائص جغرافية  المساحة 0.262488 كيلومتر مربع (1 أبريل 2010)  ارتفاع ...

 

15th-century English noble William de la Pole1st Duke of SuffolkQuartered arms of William de la Pole, Earl of Suffolk, at the time of his installation as a knight of the Order of the GarterBorn16 October 1396Cotton, Suffolk, EnglandDied2 May 1450(1450-05-02) (aged 53)English Channel (near Dover, Kent)BuriedCarthusian Priory, HullSpouse(s) Alice Chaucer ​(m. 1430)​IssueJohn de la Pole, 2nd Duke of SuffolkJane de la Pole (illegitimate)FatherMichael de la Pole, ...