献血
献血 in 30 Seconds
- Kenketsu is the Japanese word for voluntary blood donation, a vital part of the nation's healthcare system.
- It is primarily organized by the Japanese Red Cross and occurs at dedicated centers or mobile buses.
- Donors are not paid, but they receive snacks, drinks, and a basic health check as a thank you.
- The word is a Suru-verb (献血する) and is common in urban areas near train stations.
The term 献血 (Kenketsu) is a compound noun in Japanese that literally translates to "offering blood." It refers to the voluntary act of donating blood to be used for medical purposes, such as life-saving surgeries, emergency transfusions, and the production of blood-derived medicines. In the Japanese cultural context, Kenketsu is viewed as a high-level social contribution (shakai kouken) and is deeply integrated into the public health infrastructure managed primarily by the Japanese Red Cross Society (Nippon Sekijyusha).
- Etymology of 献 (Ken)
- This kanji means to offer, present, or dedicate. It is the same 'ken' found in 献身 (kenshin - devotion) and 献上 (kenjou - presentation to a superior).
- Etymology of 血 (Ketsu)
- This kanji simply means blood. Combined, they represent the selfless act of giving one's own vital fluid for the benefit of others.
"駅前で献血の呼びかけが行われていた。" (A call for blood donation was being made in front of the station.)
The concept of blood donation in Japan is not just a medical necessity but a civic duty often encouraged through mobile units called 献血車 (Kenketsu-sha) and permanent facilities known as 献血ルーム (Kenketsu Room). These rooms are often designed to be incredibly comfortable, offering free drinks, snacks, and manga to donors, transforming a clinical procedure into a community-focused experience. Understanding this word requires recognizing that it is almost always used in a formal or semi-formal context regarding public health.
"初めての献血は少し緊張しましたが、スタッフが優しかったです。" (I was a bit nervous about my first blood donation, but the staff was kind.)
Historically, Japan moved from a paid blood system to a purely voluntary one in the 1960s to ensure the safety and quality of the blood supply. This shift solidified the word 献血 as a term of altruism. When you see the red heart or the mascot 'Kenketsu-chan' (a cute character with blood-drop ears), you are seeing the branding of this vital social service. The word is ubiquitous in urban centers where volunteers hold signs asking for specific blood types that are currently in short supply.
- Medical Significance
- Blood cannot be manufactured artificially. Therefore, 献血 is the only way to secure blood for patients.
- Social Impact
- Donating blood is often one of the first ways young Japanese people engage in volunteerism (borantia).
"献血カードを忘れないように持っていってください。" (Please don't forget to bring your blood donation card.)
"冬場は献血者が減る傾向にあります。" (The number of blood donors tends to decrease during the winter months.)
"あなたの献血が、誰かの命を救います。" (Your blood donation saves someone's life.)
Using 献血 correctly involves understanding its role as a Suru-verb and its common collocations. While the noun itself refers to the act, you will most frequently encounter it in the form 献血する (to donate blood). It is important to distinguish this from general 'donations' like 寄付 (kifu), which usually refers to money or goods. You cannot 'kifu' your blood; you must 'kenketsu' it.
Grammatical Patterns
- [Place] で 献血する: To donate blood at [Place]. Example: 大学で献血した。 (I donated blood at the university.)
- 献血に 行く: To go to donate blood. This is the most common way to express the intention.
- 献血を 呼びかける: To call for/appeal for blood donations. Used by organizers.
In Japan, the process is highly standardized. When you arrive at a 献血ルーム, you will undergo a 問診 (monshin) or medical interview. If you are describing this process, you might say, "献血の前に、まず問診を受けます" (Before the blood donation, first you receive a medical interview). This level of detail is common in Japanese conversations about health and social responsibility.
"今日は時間がなかったので、献血に行けませんでした。" (I didn't have time today, so I couldn't go to donate blood.)
There are different types of donation: 全血献血 (zenketsu kenketsu) which is whole blood donation (usually 200ml or 400ml), and 成分献血 (seibun kenketsu) which is component donation (plasma or platelets). If you are a frequent donor, you might specify: "今日は成分献血をしました" (Today I did a component donation). This shows a high level of vocabulary proficiency.
Furthermore, the word is often used in compound nouns. For example, 献血手帳 (kenketsu techou) or the modern 献血カード (kenketsu kaado) refers to the donor passbook/card. 献血推進 (kenketsu suishin) refers to the promotion of blood donation. These terms are frequently seen on posters and official government websites.
"献血バスが市役所に来ています。" (The blood donation bus is at the city hall.)
- Common Verb Pairings
- 協力する (kyouryoku suru - to cooperate), 参加する (sanka suru - to participate), 依頼する (irai suru - to request).
You will encounter the word 献血 in several specific environments in Japan. The most common is near major train stations (like Shinjuku, Shibuya, or Umeda), where volunteers often stand with megaphones or signs. They might shout, "400mlの献血にご協力をお願いします!" (We ask for your cooperation with 400ml blood donations!). This is a quintessential sound of Japanese city life.
1. Public Announcements
In shopping malls or over city loudspeakers, you might hear announcements regarding the schedule of the 献血車 (blood donation bus). These announcements are usually very polite and follow a standard script, making them excellent listening practice for students of Japanese.
"ただいま、駅前広場にて献血を実施しております。" (We are currently conducting blood donations at the station square.)
2. Media and Advertising
The Japanese Red Cross runs frequent TV commercials and YouTube ads. One famous campaign is "Love in Action," which features celebrities and catchy songs to encourage young people to donate. In these ads, the word 献血 is used repeatedly as a symbol of love and kindness. You will also see posters in hospitals, clinics, and community centers.
3. Educational Settings
In Japanese schools, students are often taught about the importance of 献血 during health class (hoken). It is presented as a practical example of how one can contribute to society without needing money or special skills. Consequently, even children are familiar with the word, even if they aren't old enough to donate yet.
"学校の保健の授業で献血の大切さを学んだ。" (I learned about the importance of blood donation in my school health class.)
- Specific Locations
- 献血ルーム (Kenketsu Room), 血液センター (Ketsueki Center), 巡回献血車 (Junkai Kenketsu-sha).
While 献血 is a straightforward term, learners often confuse it with other medical or donation-related words. The most frequent error is confusing it with 輸血 (yuketsu). While both involve blood, they are opposite sides of the same coin.
- 献血 (Kenketsu): Giving blood (Donation).
- 輸血 (Yuketsu): Receiving blood (Transfusion).
If you say "病院で献血を受けた" (I received a blood donation at the hospital), it sounds like you were the one giving blood while being a patient. If you were the recipient, you should say "輸血を受けた".
"❌ 手術で献血が必要になった。" (Incorrect: Needs donation during surgery.)
"✅ 手術で輸血が必要になった。" (Correct: Needs transfusion during surgery.)
Another common mistake is confusing 献血 with 採血 (saiketsu). 採血 refers to the act of drawing blood for a medical test (like a health check-up). If you go to the doctor for a blood test, you are having 採血 done, not 献血. 献血 is specifically for the purpose of donating to others.
Finally, don't confuse 献血 with general 寄付 (kifu). While both are acts of giving, 寄付 is almost exclusively used for money, clothes, or food. If you say "血液を寄付した", people will understand you, but it sounds like a direct translation from English rather than natural Japanese.
- Confusing Kanji
- 献 (Offer) vs 権 (Right/Power). Make sure not to write 権血!
- Pronunciation Pitfall
- Be careful with the 'n' sound. It's Ke-n-ke-tsu. Some learners skip the 'n' making it 'keketsu', which is incorrect.
To truly master 献血, it helps to understand the words that live in the same semantic neighborhood. These words range from medical terms to general acts of charity.
1. 寄付 (Kifu) - Donation
This is the general word for donating money or goods to a cause. While 献血 is a type of donation, 寄付 is the broader category. You might 寄付 money to the Red Cross, but you 献血 your blood to them.
2. 奉仕 (Houshi) - Service/Ministry
This word refers to public service or volunteer work. 献血 is often described as a 社会奉仕 (shakai houshi) or social service. It carries a nuance of selflessness and duty.
"彼は長年、献血という形で社会奉仕を続けている。" (He has been continuing social service in the form of blood donation for many years.)
3. 供血 (Kyouketsu) - Blood Supply/Provision
This is a more technical, medical term for providing blood. While 献血 emphasizes the voluntary 'offering' aspect, 供血 is often used in medical journals or when discussing the supply chain of blood products. As a regular person, you will almost always use 献血.
4. 臓器提供 (Zouki Teikyou) - Organ Donation
This is the donation of organs. Like 献血, it involves giving a part of one's body to save another. The word 提供 (teikyou - provision/offer) is the common link here. In fact, 献血 is sometimes referred to as 血液の提供 (provision of blood).
- Summary of Differences
- 献血: Voluntary blood donation (Common).
輸血: Receiving blood (Medical).
採血: Drawing blood for tests (Medical).
寄付: Donating money/goods (General).
How Formal Is It?
Difficulty Rating
Grammar to Know
Suru-verbs
Purpose of movement (ni iku)
Giving and receiving (morau/ageru)
Causative and Passive in formal contexts
Noun modification
Examples by Level
駅で献血をしました。
I donated blood at the station.
Uses the simple past tense of the suru-verb 'kenketsu suru'.
献血は大切です。
Blood donation is important.
Basic A is B sentence structure.
初めて献血に行きます。
I am going to donate blood for the first time.
Uses 'ni ikimasu' to show purpose of movement.
献血をお願いします!
Blood donation, please!
A common polite request used by volunteers.
献血でジュースをもらいました。
I got juice at the blood donation.
Uses 'de' to indicate the occasion/location.
ここは献血ルームです。
This is the blood donation room.
Identifying a location.
献血は痛くないですよ。
Blood donation isn't painful, you know.
Negative adjective form 'itakunai'.
明日、献血があります。
There is a blood donation [event] tomorrow.
Uses 'arimasu' for an event.
献血バスが学校に来ました。
The blood donation bus came to the school.
Compound noun 'kenketsu-basu'.
献血の前に飲み物を飲みます。
I drink something before the blood donation.
Uses 'no mae ni' (before).
体重が足りなくて献血できませんでした。
I couldn't donate blood because I didn't weigh enough.
Potential negative form 'dekimasen deshita'.
献血カードを持っていますか?
Do you have a blood donation card?
Polite question about possession.
友達と一緒に献血に行きました。
I went to donate blood with my friend.
Uses 'to issho ni' (together with).
献血をするとお菓子がもらえます。
If you donate blood, you can get snacks.
Conditional 'to' showing a natural result.
30分ぐらいで献血が終わりました。
The blood donation finished in about 30 minutes.
Uses 'gurai' for duration.
献血のボランティアをしています。
I am doing blood donation volunteering.
Present continuous 'shite imasu'.
献血に行く前に、しっかり食事をしてください。
Please eat a proper meal before going to donate blood.
Imperative 'shite kudasai' with 'mae ni'.
成分献血は全血献血より時間がかかります。
Component donation takes more time than whole blood donation.
Comparative 'yori'.
献血のおかげで多くの命が救われています。
Thanks to blood donation, many lives are being saved.
Uses 'no okage de' (thanks to).
海外旅行の後は、しばらく献血ができません。
After traveling abroad, you cannot donate blood for a while.
Temporal 'no ato wa'.
献血ルームはリラックスできる場所です。
The blood donation room is a place where you can relax.
Relative clause modifying 'basho'.
彼は100回以上も献血をしています。
He has donated blood more than 100 times.
Emphasis particle 'mo' with a large number.
献血の重要性について作文を書きました。
I wrote an essay about the importance of blood donation.
Uses 'ni tsuite' (about).
予約をしてから献血に行くのがスムーズです。
It is smoother to go for blood donation after making a reservation.
Uses 'te kara' (after doing).
冬は献血者が減るため、血液が不足しがちです。
Because the number of donors decreases in winter, blood tends to be in short supply.
Grammar 'gachi' (tendency towards something negative).
献血の基準は、安全性のために厳しく定められています。
Blood donation standards are strictly set for the sake of safety.
Passive voice 'sadamerarete imasu'.
若者の献血離れが社会問題になっています。
The trend of young people moving away from blood donation is becoming a social issue.
Compound 'kenketsu-banare' (distancing from donation).
献血によって得られた血液は、様々な薬にもなります。
Blood obtained through donation is also used to make various medicines.
Uses 'ni yotte' (by means of).
献血の呼びかけに応じて、多くの人が集まりました。
In response to the call for blood donation, many people gathered.
Uses 'ni oujite' (in response to).
彼は献血推進運動に積極的に参加している。
He is actively participating in the blood donation promotion movement.
Adverbial 'sekkyokuteki ni'.
献血の際の問診では、正直に答える義務があります。
During the medical interview for blood donation, you have an obligation to answer honestly.
Noun 'gimu' (obligation).
血液センターは、献血された血液を厳重に管理しています。
The blood center strictly manages the donated blood.
Adverb 'genjuu ni' (strictly).
献血の自給率向上は、国家的な課題の一つである。
Improving the self-sufficiency rate of blood donation is one of the national challenges.
Formal 'de aru' style.
献血制度の歴史を紐解くと、かつての売血問題に行き着く。
Unraveling the history of the blood donation system leads back to the former issue of paid blood.
Idiomatic 'himotoku' (to unravel/examine).
献血は究極のボランティア精神の現れと言えるだろう。
It could be said that blood donation is an expression of the ultimate spirit of volunteerism.
Conjectural 'darou'.
特定の血液型が不足している場合、緊急の献血要請が出される。
When specific blood types are in short supply, an emergency request for blood donation is issued.
Conditional 'baai'.
献血における倫理的側面について、深い議論がなされた。
A deep discussion was held regarding the ethical aspects of blood donation.
Passive 'nasareta'.
少子高齢化の影響で、将来的な献血不足が懸念されている。
Due to the aging population and declining birthrate, future blood shortages are a concern.
Passive 'ken'en sarete iru'.
献血後の体調変化には、細心の注意を払う必要がある。
It is necessary to pay close attention to changes in physical condition after donating blood.
Idiom 'chuui o harau'.
献血によって社会全体の連帯感が強まることが期待される。
It is expected that blood donation will strengthen the sense of solidarity in society as a whole.
Noun 'rentaikan' (solidarity).
献血事業の持続可能性を確保するため、新たな戦略が策定された。
A new strategy was formulated to ensure the sustainability of the blood donation business.
Highly formal 'sakutei sareta'.
献血という行為が内包する利他主義のパラドックスを考察する。
We will examine the paradox of altruism inherent in the act of blood donation.
Academic 'naihou suru' (inherent/contain).
血液製剤の安定供給は、献血者の善意に依拠しているのが現状だ。
The current situation is that the stable supply of blood products relies on the goodwill of donors.
Formal 'ikyo shite iru' (rely on).
献血拒否の基準を巡る議論は、医学的根拠と人権の間で揺れている。
The debate over blood donation refusal criteria wavers between medical evidence and human rights.
Grammar 'o meguru' (concerning).
献血啓発活動の多角的なアプローチが、若年層の意識変革を促す。
A multifaceted approach to blood donation awareness activities encourages a change in consciousness among the youth.
Causative 'unagasu'.
献血記録のデジタル化により、ドナーの健康管理がより緻密になった。
With the digitalization of blood donation records, donor health management has become more precise.
Adjective 'chimitsu' (precise/detailed).
献血を巡る法整備の変遷は、日本の公衆衛生史を象徴している。
The transition of legal frameworks surrounding blood donation symbolizes the history of public health in Japan.
Verb 'shouchou suru' (symbolize).
献血文化の定着には、教育機関と地域社会の密接な連携が不可欠である。
Close cooperation between educational institutions and local communities is indispensable for the establishment of a blood donation culture.
Formal 'fukaketsu' (indispensable).
Synonyms
Antonyms
Common Collocations
Common Phrases
Often Confused With
Idioms & Expressions
Easily Confused
Sentence Patterns
How to Use It
Note that international travelers or those on medication might be restricted.
While medical, it is often discussed as a social activity.
- Using '血液をあげる'
- Confusing 献血 with 輸血
- Thinking 献血 is paid in Japan
- Writing 健血
- Saying 献血を受ける when you donate
Tips
Eat well
Make sure to eat a meal within 2 hours before donating to prevent dizziness.
Drink water
Hydrate well before and after the procedure to help your body recover faster.
Relax
The more relaxed you are, the smoother the blood flow will be during the donation.
Go with friends
Going with a friend makes the waiting time more enjoyable and encourages others.
Use the App
The 'Loverad' app allows you to book appointments and see your blood test results.
Check the time
Component donation takes longer, so make sure you have enough time in your schedule.
Rest after
Take at least 10-15 minutes to sit and drink juice after you finish donating.
Be honest
Always answer the medical questionnaire honestly to ensure the safety of the recipient.
Winter help
Blood is often in short supply in winter, so donating then is especially helpful.
Enjoy the treats
Don't feel bad about taking the free snacks; they are there to help you recover!
Memorize It
Word Origin
Sino-Japanese (Kango)
Cultural Context
Kenketsu-chan is the official mascot.
Free snacks, drinks, and sometimes small gifts like towels or stationery.
Donating blood is seen as a very respectable act of volunteerism.
Practice in Real Life
Real-World Contexts
Conversation Starters
"献血をしたことがありますか?"
"近くに献血ルームはありますか?"
"献血の後のジュースは何が好きですか?"
"あなたの血液型は何型ですか?"
"献血バスを見たことがありますか?"
Journal Prompts
初めて献血をした時のことを書いてください。
なぜ献血は大切だと思いますか?
献血ルームがもっと増えるにはどうすればいいでしょうか?
献血のボランティアについてどう思いますか?
献血を広めるためのアイデアを書いてください。
Frequently Asked Questions
10 questions針を刺す時に少しチクッとしますが、すぐに慣れます。スタッフが丁寧に対応してくれます。
身分証明書(運転免許証など)や、持っている場合は献血カードが必要です。
全血献血なら受付から終了まで40分〜1時間程度、成分献血なら1.5時間〜2時間程度です。
激しい運動は避けてください。気分が悪くなる可能性があるため、安静にすることが推奨されます。
はい、できます。ただし、滞在期間や健康状態、日本語の理解度などの条件があります。
飲み物やお菓子、時には記念品(タオルや洗剤など)がもらえます。
日本では、種類によりますが16歳から69歳までの方が献血可能です。
社会貢献ができるだけでなく、血液検査の結果が送られてくるので健康管理に役立ちます。
200ml献血、400ml献血、そして成分献血(血漿・血小板)があります。
市役所、大学、大きな駅の広場などによく止まっています。ウェブサイトでスケジュールを確認できます。
Test Yourself 180 questions
/ 180 correct
Perfect score!
Summary
献血 (Kenketsu) is a high-frequency social and medical term in Japan. It represents the selfless act of donating blood, is highly standardized by the Red Cross, and is a common sight in Japanese city life through mobile donation buses and station-side appeals.
- Kenketsu is the Japanese word for voluntary blood donation, a vital part of the nation's healthcare system.
- It is primarily organized by the Japanese Red Cross and occurs at dedicated centers or mobile buses.
- Donors are not paid, but they receive snacks, drinks, and a basic health check as a thank you.
- The word is a Suru-verb (献血する) and is common in urban areas near train stations.
Eat well
Make sure to eat a meal within 2 hours before donating to prevent dizziness.
Drink water
Hydrate well before and after the procedure to help your body recover faster.
Relax
The more relaxed you are, the smoother the blood flow will be during the donation.
Go with friends
Going with a friend makes the waiting time more enjoyable and encourages others.
Example
献血に協力します。
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