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A young Japanese man living as a hikikomori in 2004

In Japan, hikikomori (Japanese: ひきこもり or 引きこもり, lit. "pulling inward, being confined", i.e., "acute social withdrawal") are reclusive adolescents or adults who withdraw from society and seek extreme degrees of isolation and confinement.[1] Hikikomori refers to both the phenomenon in general and the recluses themselves. Hikikomori have been described as loners or "modern-day hermits".[2] Estimates suggest that half a million Japanese youths have become social recluses,[3] as well as more than half a million middle-aged individuals.[4]


The Japanese Ministry of Health, Labour, and Welfare defines hikikomori as a condition in which the affected individuals refuse to leave their parents' house, do not work or go to school and isolate themselves away from society and family in a single room for a period exceeding six months.[5] The psychiatrist Tamaki Saitō defines hikikomori as "a state that has become a problem by the late twenties, that involves cooping oneself up in one's own home and not participating in society for six months or longer, but that does not seem to have another psychological problem as its principal source".[6]

More recently, researchers have developed more specific criteria to more accurately identify hikikomori. During a diagnostic interview, trained clinicians evaluate for:[7]

  1. spending most of the day and nearly every day confined to home,
  2. marked and persistent avoidance of social situations, and social relationships,
  3. social withdrawal symptoms causing significant functional impairment,
  4. duration of at least six months, and
  5. no apparent physical or mental etiology to account for the social withdrawal symptoms.

The psychiatrist Alan Teo first characterized hikikomori in Japan as modern-day hermits,[2] while the literary and communication scholar Flavio Rizzo similarly described hikikomori as "post-modern hermits" whose solitude stems from ancestral desires for withdrawal.[8]

While the degree of the phenomenon varies on an individual basis, in the most extreme cases, some people remain in isolation for years or even decades. Often hikikomori start out as school refusers, or futōkō (不登校) in Japanese (an older term is tōkōkyohi (登校拒否)).

Common traits[edit]

While many people feel the pressures of the outside world, hikikomori react by complete social withdrawal. In some more extreme cases, they isolate themselves in their bedrooms for months or years at a time.[9] They usually have few or no friends. In interviews with current or recovering hikikomori, media reports and documentaries have captured the strong levels of psychological distress and angst felt by these individuals.[10]

While hikikomori favour indoor activities, some venture outdoors occasionally.[11] The withdrawal from society usually starts gradually. Affected people may appear unhappy, lose their friends, become insecure and shy, and talk less.


According to Japanese government figures released in 2010, there are 700,000 individuals living as hikikomori within Japan, with an average age of 31.[12] Still, the numbers vary widely among experts. These include the hikikomori who are now in their 40s and have spent 20 years in isolation. This group is generally referred to as the "first-generation hikikomori.” There is concern about their reintegration into society in what is known as "the 2030 Problem,” when they are in their 60s and their parents begin to die.[12] Additionally, the government estimates that 1.55 million people are on the verge of becoming hikikomori.[12] Tamaki Saitō, who first coined the phrase, originally estimated that there may be over one million hikikomori in Japan, although this was not based on national survey data. Nonetheless, considering that hikikomori adolescents are hidden away and their parents are often reluctant to talk about the problem, it is extremely difficult to gauge the number accurately.[13]

A 2015 Cabinet Office survey estimated that 541,000 recluses aged 15 to 39 existed. In 2019, another survey showed that there are roughly 613,000 people aged 40 to 64 that fall into the category of "adult hikikomori", which Japan's welfare minister Takumi Nemoto referred to as a "new social issue."[4]

While hikikomori is mostly a Japanese phenomenon, cases have been found in the United States, United Kingdom, Oman, Holland, Germany, Spain, Italy, India, Sweden, South Korea, and France.[9][14][15]

Hypotheses on cause[edit]

Psychiatric disorders[edit]

Hikikomori is similar to the social withdrawal exhibited by some people with autism spectrum disorders, a group of disorders that include Asperger syndrome, PDD-NOS and "classic" autism. This has led some psychiatrists to suggest that hikikomori may be affected by autism spectrum disorders and other disorders that affect social integration, but that their disorders are altered from their typical Western presentation because of Japanese sociocultural pressures.[16] Suwa & Hara (2007) discovered that 5 of 27 cases of hikikomori had a high-functioning pervasive developmental disorder (HPDD), and 12 more had other disorders or mental diseases (6 cases of personality disorders, 3 cases of obsessive-compulsive disorder, 2 cases of depression, 1 case of slight mental retardation); 10 out of 27 had primary hikikomori. The researchers used a vignette to illustrate the difference between primary hikikomori (without any obvious mental disorder) and hikikomori with HPDD or other disorder.[17] Alan Teo and colleagues conducted detailed diagnostic evaluations of 22 individuals with hikikomori and found that while the majority of cases fulfilled criteria for multiple psychiatric conditions, about 1 in 5 cases were primary hikikomori.[18]

According to Michael Zielenziger's book, Shutting Out the Sun: How Japan Created Its Own Lost Generation, the syndrome is more closely related to posttraumatic stress disorder. The author claimed that the hikikomori interviewed for the book had discovered independent thinking and a sense of self that the current Japanese environment could not accommodate.[19]

The syndrome also closely parallels the terms avoidant personality disorder, schizoid personality disorder, schizotypal personality disorder, agoraphobia or social anxiety disorder (also known as "social phobia").

Social and cultural influence[edit]

Sometimes referred to as a social problem in Japanese discourse, hikikomori has a number of possible contributing factors. Alan Teo has summarized a number of potential cultural features that may contribute to its predominance in Japan. These include tendencies toward conformity and collectivism, overprotective parenting, and particularities of the educational, housing and economic systems.[20]

Acute social withdrawal in Japan appears to affect both genders equally. However, because of differing social expectations for maturing boys and girls, the most widely reported cases of hikikomori are from middle- and upper-middle-class families; sons, typically their eldest, refuse to leave the home, often after experiencing one or more traumatic episodes of social or academic failure.

In The Anatomy of Dependence, Takeo Doi identifies the symptoms of hikikomori, and explains its prevalence as originating in the Japanese psychological construct of amae (in Freudian terms, "passive object love", typically of the kind between mother and infant).[21] Other Japanese commentators such as academic Shinji Miyadai and novelist Ryū Murakami, have also offered analysis of the hikikomori phenomenon, and find distinct causal relationships with the modern Japanese social conditions of anomie, amae and atrophying paternal influence in nuclear family child pedagogy. Young adults may feel overwhelmed by modern Japanese society, or be unable to fulfill their expected social roles as they have not yet formulated a sense of personal honne and tatemae – one's "true self" and one's "public façade" – necessary to cope with the paradoxes of adulthood.

The dominant nexus of hikikomori centres on the transformation from youth to the responsibilities and expectations of adult life. Indications are that advanced industrialized societies such as modern Japan fail to provide sufficient meaningful transformation rituals for promoting certain susceptible types of youth into mature roles. As do many societies, Japan exerts a great deal of pressure on adolescents to be successful and perpetuate the existing social status quo. A traditionally strong emphasis on complex social conduct, rigid hierarchies and the resulting, potentially intimidating multitude of social expectations, responsibilities and duties in Japanese society contribute to this pressure on young adults.[22] Historically, Confucian teachings de-emphasizing the individual and favouring a conformist stance to ensure social harmony in a rigidly hierarchized society have shaped much of East Asia, possibly explaining the emergence of the hikikomori phenomenon in other East Asian countries.

In general, the prevalence of hikikomori tendencies in Japan may be encouraged and facilitated by three primary factors:

  1. Middle class affluence in a post-industrial society such as Japan allows parents to support and feed an adult child in the home indefinitely. Lower-income families do not have hikikomori children because a socially withdrawing youth is forced to work outside the home.[23]
  2. The inability of Japanese parents to recognize and act upon the youth's slide into isolation; soft parenting; or codependence between mother and son, known as amae in Japanese.[24]
  3. A decade of flat economic indicators and a shaky job market in Japan makes the pre-existing system requiring years of competitive schooling for elite jobs appear like a pointless effort to many.[25]

Role of modern technology[edit]

Although the connection between modern communication technologies, such as the Internet, social media and video games, and the phenomenon is not conclusively established, it is considered at least an exacerbating factor that can deepen and nurture withdrawal.[26] Previous studies of hikikomori in South Korea and Spain found that some of them showed signs of Internet addiction, though researchers do not consider this to be the main issue.[26] However, according to associate professor of psychiatry at Kyushu University in Fukuoka, Takahiro Kato, video games and social media have reduced the amount of time that people spent outside and in social environments that require direct face to face interaction.[26] The emergence of mobile phones and then smartphones may also have deepened the issue, given that people can continue their addiction to gaming and online surfing anywhere, even in bed.[27]

Japanese education system[edit]

The Japanese education system, like those found in China, Singapore, India, and South Korea, puts great demands upon youth. A multitude of expectations, high emphasis on competition, and the rote memorization of facts and figures for the purpose of passing entrance exams into the next tier of education in what could be termed a rigid pass-or-fail ideology, induce a high level of stress. Echoing the traditional Confucian values of society, the educational system is viewed as playing an important part in society's overall productivity and success.[28]

In this social frame, students often face significant pressure from parents and the society in general to conform to its dictates and doctrines.[29] These doctrines, while part of modern Japanese society, are increasingly being rejected by Japanese youth in varying ways such as hikikomori, freeter, NEET (Not currently engaged in Employment, Education, or Training), and parasite singles. The term "Hodo-Hodo zoku" (the "So-So tribe") applies to younger workers who refuse promotion to minimize stress and maximize free time.

Beginning in the 1960s, the pressure on Japanese youth to succeed began successively earlier in their lives, sometimes starting before pre-school, where even toddlers had to compete through an entrance exam for the privilege of attending one of the best pre-schools. This was said to prepare children for the entrance exam of the best kindergarten, which in turn prepared the child for the entrance exam of the best elementary school, junior high school, high school, and eventually for their university entrance exam.[30] Many adolescents take one year off after high school to study exclusively for the university entrance exam, and are known as ronin.[31] More prestigious universities have more difficult exams. The most prestigious university with the most difficult exam is the University of Tokyo.[32]

Since 1996, the Japanese Ministry of Education has taken steps to address this 'pressure-cooker' educational environment and instill greater creative thought in Japanese youth by significantly relaxing the school schedule from six-day weeks to five-day weeks and dropping two subjects from the daily schedule, with new academic curricula more comparable to Western educational models. However, Japanese parents are sending their children to private cram schools, known as juku, to 'make up' for lost time.[33]

After graduating from high school or university, Japanese youth also have to face a very difficult job market in Japan, often finding only part-time employment and ending up as freeters with little income, unable to start a family.[34]

Another source of pressure is from their co-students, who may harass and bully (ijime) some students for a variety of reasons, including physical appearance, wealth, or educational or athletic performance. Some have been punished for bullying or truancy, bringing shame to their families. Refusal to participate in society makes hikikomori an extreme subset of a much larger group of younger Japanese that includes freeters.[32][33]

Japanese financial burden[edit]

Some organizations such as the non-profit Japanese organization NPO lila have been trying to combat the financial burden the hikikomori phenomenon has had on Japan's economy.[35] The Japanese CD and DVD producer Avex Group produces DVD videos of live-action women staring into a camera to help hikikomori learn to cope with eye contact and long spans of human interaction. The goal is to help hikikomori reintegrate into society by personal choice, thereby realizing an economic contribution and reducing the financial burden on parents.[36]

See also[edit]



  1. ^ Kremer, William; Hammond, Claudia (5 July 2003). "Hikikomori: Why are so many Japanese men refusing to leave their rooms?". BBC News. BBC. Archived from the original on 22 March 2016. Retrieved 11 March 2016.
  2. ^ a b Teo, Alan (8 November 2012). Modern-Day Hermits: The Story Hikkomori in Japan and Beyond (YouTube). University of Michigan Center for Japanese Studies. Archived from the original on 22 January 2014. Retrieved 26 February 2014.
  3. ^ Jozuka, Emiko (12 September 2016). "Why won't 541,000 young Japanese leave the house?". CNN News. Archived from the original on 11 November 2017. Retrieved 27 March 2018.
  4. ^ a b "613,000 in Japan aged 40 to 64 are recluses, says first government survey of hikikomori". The Japan Times Online. 29 March 2019. ISSN 0447-5763. Archived from the original on 29 March 2019. Retrieved 29 March 2019.
  5. ^ Itou 2003.
  6. ^ Saitō 2012.
  7. ^ Teo & Gaw 2010; Teo et al. 2015, p. 182.
  8. ^ Rizzo, Flavio (14 June 2016). "Hikikomori: The Postmodern Hermits of Japan". Warscapes. Archived from the original on 19 June 2016. Retrieved 17 June 2016.
  9. ^ a b Teo 2013.
  10. ^ "Hikikomori: Japan's Lost Generation of Digital Age Hermits". Archived from the original on 12 May 2017. Retrieved 11 May 2017.
  11. ^ [1] Archived February 8, 2005, at the Wayback Machine
  12. ^ a b c Hoffman, Michael (9 October 2011). "Nonprofits in Japan help 'shut-ins' get out into the open". The Japan Times Online. Archived from the original on 28 July 2014. Retrieved 24 July 2014.
  13. ^ Saitō 1998.
  14. ^ Kato, Takahiro A.; Kanba, Shigenobu; Teo, Alan R. (2018). "Hikikomori: experience in Japan and international relevance". World Psychiatry. 17 (1): 105–106. doi:10.1002/wps.20497. PMC 5775123. PMID 29352535.
  15. ^ Gozlan, Marc (9 June 2012). "Des cas d'hikikomori en France". Le Monde (in French). p. 3. Archived from the original on 3 April 2015. Retrieved 7 June 2017.
  16. ^ Kary, Tiffany (2003). "Total Eclipse of the Son: Why are Millions of Japanese Youths Hiding from Friends and Family?". Psychology Today. Retrieved 13 October 2007.
  17. ^ Suwa & Hara 2007.
  18. ^ Teo et al. 2015, p. 182.
  19. ^ Zielenziger 2006.
  20. ^ Teo, Stufflebam & Kato 2014.
  21. ^ Doi 1973.
  22. ^ Rohlen 1989.
  23. ^ Kudō, Sadatsugu and Saitō, Tamaki. September 2001. Argument! Hikikomori. Tokyo: Studio Pot. Shuppan. 工藤 定次(著),斎藤 環(著),「永冨奈津恵」。「激論!ひきこもり」東京:ポット出版、9月、2001。ISBN 4939015378
  24. ^ Kudō, Sadatsugu. October 2001. Hey Hikikomori! It's Time, Let's Go Out. Tokyo: Studio Pot. Ed., Tokyo: Pot Shuppan. 工藤 定次 (著), スタジオポット(著)。「おーぃ、ひきこもり そろそろ外へ出てみようぜ—タメ塾の本」。出版社:ポット出版、10月、2001。「ISBN 4-939015-10-6
  25. ^ Okano & Tsuchiya 1999.
  26. ^ a b c Gent, Edd (29 January 2019). "The plight of Japan's modern hermits". BBC News. Archived from the original on 29 March 2019. Retrieved 29 March 2019.
  27. ^ ""Hikikomori": Social Recluses in the Shadows of an Aging Japan". nippon.com. 19 July 2017. Archived from the original on 6 March 2019. Retrieved 29 March 2019.
  28. ^ Rohlen 1992.
  29. ^ Rohlen 1996.
  30. ^ M. White 1987.
  31. ^ Tsukada 1991.
  32. ^ a b Jones, Maggie (15 January 2006). "Shutting Themselves In". The New York Times Magazine. Archived from the original on 6 April 2016. Retrieved 11 March 2016.
  33. ^ a b "BBC NEWS - Programmes - Correspondent - Japan: The Missing Million". 20 October 2002. Archived from the original on 11 March 2016. Retrieved 11 March 2016.
  34. ^ Yoshimoto, K, and Japan Institute of Labor. 1996. "High School and Initial Career of Graduates." JIL Report No. 89.
  35. ^ "NPO法人 楽の会リーラ". Npo-lila.com. Archived from the original on 22 June 2013. Retrieved 18 June 2013.
  36. ^ "Hikikomori - Japan's Social Ghosts - Kuma Language Services". 18 July 2016. Archived from the original on 29 August 2016. Retrieved 11 August 2016.


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