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saikenMD
Twitter followers 43.8K
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saikenMD

AKA SaikenHiroi Saiken (博井さいけん)saikenMD
Independent Active Last active 5 days ago on Twitter

About

saikenMD, an active VTuber streaming independently. Gender: Male. Operates out of United States. Content is delivered in english. Posts content to Twitch, YouTube, X (Twitter), TikTok. Twitch Affiliate. Counts 43.8K followers on Twitter and 5.0K followers on Twitch across their channels. Streams cover chatting / gaming. Common descriptors: degenerate, doctor, medical, medicine. 5 recent VODs are tracked from their channel. Has been performing since 2022/06/18. Production credits include illustrator by Shayu, live2d rigger by Karin Edelfelt. Known to be saiken is unapologetically himself in the hospital and on stream. Character design: Saiken has gray-white hair parted in a two-block cut, with shaved black hair underneath. Backstory excerpt: Saiken's Twitter account was created in October 2010, his Twitch channel was created on 13 November 2013, and his YouTube channel was created on 9 March 2022. Trivia: Saiken holds undergraduate degrees in theater studies and chemistry. saikenMD stands at 170 cm (5'7"), character age 30 (2025). Character birthday: 24 April. Signature emoji: 🩺💜. Available media: an introduction video. Fanbase known as Saikenators. Also known as Saiken, Hiroi Saiken (博井さいけん), saikenMD.


Hiroi Saiken (博井さいけん), also known as saiken, M.D., is a male American doctor VTuber who is also an internal medicine doctor in real life. He streams JRPGs and also creates medical education content. Saiken is known for his monthly "Office Hours" posts, where he allows fans to ask basic medical questions in a judgement-free context, and his "Rounds with Saiken" series of shorts, where he discusses various conditions in a more formal lecture style. Saiken debuted as a VTuber in 2022, prior to beginning his internal medicine residency. Saiken currently practices medicine as a hospitalist, and is also enrolled in an administration fellowship—through which he hopes to one day become a physician executive and make a tangible difference in the landscape of American healthcare.

Character Info

Country US United States
Gender Male
Birthday 24 April
Age 30 (2025)
Debut 2022/06/18
Height 170 cm (5'7")
Illustrator Shayu
Live2D Rigger Karin Edelfelt

Community

Streaming Language English
Fan Name Saikenators
Genres chatting, gaming
Emoji 🩺💜

Tags

degeneratedoctormedicalmedicine

Twitch Schedule

Recent Activity

Recent Tweets
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Introduction Video

Gallery

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Personality

Saiken is unapologetically himself in the hospital and on stream. He isn't afraid to be open with people and patients alike, attracting friends and conversation as easily as eliciting a medical history. Though no less responsible than the rest of his colleagues, Saiken is certainly the one to yap the most about his interests. As a fan, prepare to be lectured on the pathophysiology of hypothyroidism, the intricacies of the Pursuit Critical Coefficient system of Fire Emblem: Thracia 776, or (for the truly unfortunate) both.

Saiken's Enneagram and MBTI type is 2w3 ESFJ.

Appearance

Saiken has gray-white hair parted in a two-block cut, with shaved black hair underneath. He has light-yellow eyes and a beauty mark next to his left eye. He wears gray scrubs, not-so-subtly inspired by his real-life scrubs (the FIGS Leon™ Three-Pocket Scrub Top and Tanssen™ Jogger Scrub Pants in Graphite) underneath a white coat with numerous blue & pink highlights. He wears a purple heart pin on his right coat lapel, a gray stethoscope, and various bunny-themed accessories.

Background

Saiken's Twitter account was created in October 2010, his Twitch channel was created on 13 November 2013, and his YouTube channel was created on 9 March 2022. Saiken began streaming as a VTuber in March 2022, using a model purchased from Booth, designed by Nagihama Nazuzu.

Mascots and fans

  • Saiken's fans are called "Saikenators."

Random trivia

  • Saiken holds undergraduate degrees in theater studies and chemistry. It was there where he discovered he suddenly became allergic to apples when he turned 18. He reports that at that point, he had no choice but to become a doctor.
  • Saiken has a weakness to gyarus and older sisters. This realization was spurred on by characters such as Imai Lisa from BanG Dream!, and from D4DJ. Subsequently, gyarus who are also older sisters are doubly super-effective.
  • Saiken's favorite game of all time is Fire Emblem: Genealogy of the Holy War. He is still patiently waiting for the inevitable remake announcement.
  • Saiken's oshi is Akai Haato, and he had participated in multiple Haachama Sunday submissions prior to becoming a VTuber.
  • Saiken shares a model artist with 胜意uncle of AuroraLiveVR.

Likes and dislikes

  • Saiken likes cheese, coffee, beef Wellington, seolleongtang (ox bone soup), zaru soba (cold soba noodles), thighs, butts, and disappointing his parents by not speaking his mother tongues.
  • Saiken dislikes capital letters, roguelikes, ignorance, incompetence, and people who ask questions for the sake of showing off how much they know about a topic.
  • Saiken's favorite anime and manga series include Zombie Land Saga, The Prince of Tennis, Ping Pong, Beck: Mongolian Chop Squad, Code Geass, Sakamichi no Apollon, Assassination Classroom, and Sword Art Online.
  • Saiken's favorite music artists include Stray Kids, Polyphia, ATEEZ, Yuyoyuppe, Masayoshi Soken, Raise A Suilen, My Chemical Romance, and Hentai Dude.
  • Saiken's favorite game series are Fire Emblem, Shin Megami Tensei, Final Fantasy, Zero Escape, Rune Factory, and Street Fighter.

Lore

A newly-graduated doctor who is passionate about his work, both on and offline. He is a lifelong gamer who never lost sight of his personal interests on his journey to becoming a doctor. Blending both the didactic professionalism of the physician, and the paragraph-slinging waifu defender, Saiken brings an improbably unique force to the VTubing world.

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More Info

Profile

A newly-graduated doctor who is passionate about his work, both on and offline. He is a lifelong gamer who never lost sight of his personal interests on his journey to becoming a doctor. Blending both the didactic professionalism of the physician, and the paragraph-slinging waifu defender, Saiken brings an improbably unique force to the VTubing world.

2022

On 1 March, Saiken announced his activities as a predebut VTuber.

On 15 May, Saiken graduated from medical school.

On 18 June, Saiken held his debut stream.

On 1 July, Saiken began internal medicine residency.

2024

On 1 September, Saiken held his 2.0 Redebut stream.

2025

On 28 March, Saiken announced he matched into a hospital administration fellowship to continue his medical training.

On 10 May, Saiken celebrated hitting 10,000 followers on his Twitter account.

On 30 June, Saiken graduated from internal medicine residency.

On 22 July, Saiken celebrated hitting 25,000 followers on his Twitter account.

2026

On 8 January, Saiken announced that his 2026 goal would be to obtain the YouTube Health Creator Partnership in order to get his medical license verified on his YouTube channel.

On 31 January, Saiken announced that he had been accepted into the YouTube Health Creator Residency Program.

On 10 February, OffKai Expo announced that they would be featuring Saiken at a panel at their convention in July. This is Saiken's first appearance as a convention guest, and his first time hosting a panel.

On 31 March, Saiken celebrated hitting 40,000 followers on his Twitter account.

Medical career
  • Saiken served as the Chief Resident of his residency program during his PGY-3 year (2024-2025).
  • Saiken's stethoscope of choice is a Littmann® Classic III™.
  • Saiken's 10-minute presentation on the diagnosis and initial management of Systemic Lupus Erythematosus was watched by Ironmouse on her community presentation stream in 2024.
  • Saiken graduated medical school with over $100,000 USD in student loan debt, even as the recipient of a half-ride scholarship (he is still paying it off to this day).
Media
  • saikenMD - Twitch channel
  • saiken, M.D. - YouTube channel
  • saikenMD - Twitter account
  • saikenMD - TikTok account
  • saikenMD - Ko-fi
  • saikenMD - Throne
  • Carrd - Official website
Hashtags
  • #saikenLIVE - Stream/Clip tag
  • #yourARTeries - Fan art tag
  • #sussyMD - NSFW tag
Statistics
  • saiken, M.D. - Social Blade YouTube stats
  • saiken, M.D. - Social Blade Twitch stats