B1 noun 4分で読める

hématome

A hematoma is a collection of blood that pools outside of your blood vessels, usually caused by an injury.

あなたのレベルに合った解説:

A hematoma is a bad bruise. It happens when you hit your body. Blood stays under your skin. It looks dark and purple. It hurts a little bit. Usually, it goes away soon. If it is big, see a doctor.

When you get a hard hit, you might get a hematoma. This is a collection of blood under the skin. It is more than a small bruise. It can be a little swollen and painful. You should put ice on it to help it heal faster.

A hematoma occurs when blood vessels break and blood leaks into the surrounding tissue. Unlike a simple bruise, a hematoma often involves a noticeable lump. It is common in contact sports or after a fall. Most hematomas are not dangerous, but they need time to disappear as the body reabsorbs the blood.

In medical terms, a hematoma is a localized swelling filled with blood. It is a more precise term than 'bruise,' as it indicates a significant pooling of blood. While minor ones are common, some hematomas require medical drainage if they are large or cause pressure on nearby organs. Always monitor them for signs of infection or severe pain.

A hematoma represents a pathological accumulation of blood outside the vascular system, often resulting from trauma or surgical intervention. While colloquially referred to as a bruise, the clinical definition emphasizes the mass-like quality of the collection. In surgical contexts, the management of a postoperative hematoma is critical to prevent complications such as tissue necrosis or secondary infection. Understanding the distinction between superficial and deep-seated hematomas is essential for proper diagnosis.

The term hematoma, etymologically derived from the Greek haima, serves as a quintessential example of medical nomenclature. It denotes a discrete collection of extravasated blood, which, depending on its anatomical location, can range from a trivial subcutaneous ecchymosis to a life-threatening intracranial event. The clinical significance of a hematoma is dictated by its volume, location, and the integrity of the surrounding vasculature. In literary or narrative contexts, the word is often employed to convey the visceral reality of violence or trauma, grounding abstract descriptions of injury in precise, clinical terminology that evokes a sense of severity and physical permanence.

30秒でわかる単語

  • A hematoma is a blood-filled swelling.
  • It is more formal than a bruise.
  • It is usually caused by trauma.
  • Most heal on their own with ice.

Hey there! Have you ever bumped your head or fallen down and noticed a lumpy, dark purple spot that feels a bit tender? That is likely a hematoma. It is basically a collection of blood that has escaped from a damaged blood vessel and is now trapped under your skin or inside an organ.

Think of it as a blood blister or a deep bruise. While most people just call it a bruise, doctors use the word hematoma when there is a significant amount of blood pooling in one spot. It is not just a discoloration; it is a physical mass you can often feel.

Most hematomas are harmless and go away on their own as your body cleans up the trapped blood. However, because they involve internal bleeding, they can sometimes be serious if they happen in important places like the brain. It is always good to know the difference between a tiny scrape and something that needs a doctor's attention!

The word hematoma has deep roots in ancient Greek. It is formed from the Greek word haima, which means blood, combined with the suffix -oma, which is used in medical terminology to describe a mass, tumor, or swelling.

It is fascinating how language evolves! In the past, the suffix -oma was simply used to describe any kind of swelling. Over time, medical professionals narrowed it down to describe specific types of masses. You can see the same root haima in other English words like hemoglobin, which is the protein in your blood that carries oxygen.

The term entered English medical vocabulary in the 19th century as medicine became more scientific and descriptive. It replaced older, less precise terms for swellings, allowing doctors to communicate more clearly about exactly what was happening inside a patient's body. It is a perfect example of how Greek roots continue to shape modern science.

You will mostly hear the word hematoma in medical or clinical settings. If you are talking to a friend, you would probably just say bruise or bump. However, if you are at the doctor's office, they might use the term to be more precise about the severity of your injury.

Common collocations include subdural hematoma, which refers to bleeding near the brain, or intramuscular hematoma, which happens inside a muscle. You might hear phrases like 'the hematoma is absorbing' or 'a large hematoma formed after the surgery.'

The register of this word is definitely formal. Using it in casual conversation might sound a bit like you are trying too hard to sound like a doctor! Stick to 'bruise' for everyday life, and save 'hematoma' for when you are discussing health, sports injuries, or medical reports.

While hematoma is a technical term and doesn't appear in many common idioms, it is often associated with expressions about getting hurt or fighting.

  • 'Take a beating': To suffer a physical injury or a defeat. 'He really took a beating in that boxing match and ended up with a hematoma.'
  • 'Black and blue': Used to describe a severe bruise. 'After the fall, her leg was black and blue with a nasty hematoma.'
  • 'Battle scar': A mark left after an injury. 'That hematoma on his forehead is a real battle scar from the game.'
  • 'Under the skin': A literal description of where a hematoma lives. 'The injury was deep under the skin.'
  • 'Rough around the edges': Sometimes used to describe a person who looks like they have been in a fight.

Grammatically, hematoma is a regular countable noun. You can have one hematoma or several hematomas (or sometimes the Latin plural hematomata, though that is very rare!).

Pronunciation can be tricky! In the US, it is usually pronounced hee-muh-TOH-muh. The stress is on the third syllable. In the UK, you might hear hem-uh-TOH-muh. It rhymes with words like carcinoma, glaucoma, and diploma.

When using it in a sentence, you usually use an article: 'The doctor found a hematoma' or 'He developed a large hematoma.' It is almost always used as the object of a verb or the subject of a passive sentence.

豆知識

The suffix -oma is used for many medical conditions.

発音ガイド

UK /ˌhiːməˈtəʊmə/
US /ˌhiːməˈtoʊmə/
韻が合う語
carcinoma glaucoma diploma coma aroma
よくある間違い
  • Misplacing the stress
  • Pronouncing the 'h' too hard
  • Adding extra syllables

難易度

読解 2/5

Easy to read but technical.

ライティング 3/5

Requires formal register.

スピーキング 3/5

Pronunciation is key.

リスニング 2/5

Clear pronunciation.

次に学ぶべきこと

前提知識

blood injury swelling doctor

次に学ぶ

contusion hemorrhage coagulation

上級

subdural intramuscular pathology

知っておくべき文法

Noun Pluralization

Hematoma -> Hematomas

Article Usage

A hematoma

Subject-Verb Agreement

The hematoma is large.

レベル別の例文

1

I have a hematoma on my leg.

I have a big bruise on my leg.

Use 'a' before hematoma.

2

The hematoma is purple.

The bruise is purple.

Subject + verb + adjective.

3

My hematoma hurts.

My bruise is painful.

Possessive pronoun.

4

I fell and got a hematoma.

I fell and got a bruise.

Past tense verb.

5

Does the hematoma hurt?

Is the bruise painful?

Question form.

6

The hematoma is small.

The bruise is small.

Simple adjective.

7

I see a hematoma.

I see a bruise.

Object of the verb.

8

Put ice on the hematoma.

Put ice on the bruise.

Imperative sentence.

1

The doctor checked the hematoma on my arm.

2

I have a large hematoma from the accident.

3

She put ice on the hematoma to reduce swelling.

4

The hematoma is starting to change color.

5

He was worried about the hematoma on his head.

6

The nurse cleaned the area around the hematoma.

7

A hematoma can take weeks to heal.

8

The pain from the hematoma is getting better.

1

The patient developed a hematoma after the surgery.

2

The doctor said the hematoma would resolve on its own.

3

He had a painful hematoma on his thigh after the football game.

4

The scan revealed a small hematoma near the injury site.

5

She was surprised by the size of the hematoma.

6

The hematoma caused significant pressure on the surrounding tissue.

7

We need to monitor the hematoma for any signs of infection.

8

The hematoma is a common complication of this procedure.

1

The subdural hematoma required immediate surgical intervention.

2

Despite the initial fear, the hematoma was just a superficial injury.

3

The surgeon was careful to avoid causing a hematoma during the operation.

4

The patient reported a dull ache from the hematoma.

5

The hematoma was clearly visible on the ultrasound imaging.

6

He was advised to rest to allow the hematoma to reabsorb.

7

The risk of a hematoma is higher for patients on blood thinners.

8

The hematoma eventually hardened before it began to fade.

1

The rapid expansion of the hematoma necessitated an emergency evacuation of the blood.

2

Clinical assessment confirmed a large intramuscular hematoma in the calf.

3

The patient's hematoma was secondary to a minor trauma during the fall.

4

Post-operative hematoma formation is a known risk factor in orthopedic surgery.

5

The hematoma exerted pressure on the nerve, causing numbness in the limb.

6

The resolution of the hematoma was monitored through serial imaging.

7

A chronic hematoma can sometimes become encapsulated by fibrous tissue.

8

The surgeon successfully evacuated the hematoma without further complications.

1

The presence of a persistent hematoma in the elderly patient raised concerns about underlying coagulopathy.

2

The pathophysiology of a chronic subdural hematoma involves recurrent micro-hemorrhages.

3

The surgeon meticulously ligated the vessels to prevent the formation of a post-operative hematoma.

4

The hematoma served as a stark reminder of the violence inherent in the confrontation.

5

The clinical presentation was complicated by the development of a deep-seated hematoma.

6

The patient's recovery was delayed by the resorption process of the extensive hematoma.

7

Radiological evidence confirmed the hematoma was sequestered from the main vascular flow.

8

The hematoma, though initially alarming, showed signs of organization and regression.

よく使う組み合わせ

large hematoma
subdural hematoma
develop a hematoma
drain a hematoma
painful hematoma
postoperative hematoma
small hematoma
monitor the hematoma
intramuscular hematoma
absorb a hematoma

慣用句と表現

"black and blue"

severely bruised

He was black and blue after the fight.

casual

"take a hit"

to suffer an injury

He really took a hit during the game.

casual

"under the skin"

literally or figuratively irritating

The injury was deep under the skin.

neutral

"come to the surface"

to become visible

The bruise finally came to the surface.

neutral

"in the red"

bleeding or losing money

The injury left him in the red.

casual

"sore spot"

a sensitive area

That hematoma is a real sore spot.

casual

間違えやすい

hématome vs Tumor

Both end in -oma

Tumor is abnormal growth; hematoma is blood.

A tumor is cells; a hematoma is blood.

hématome vs Bruise

Both are injuries

Bruise is casual; hematoma is medical.

I have a bruise on my arm.

hématome vs Hemorrhage

Both involve blood

Hemorrhage is the act of bleeding; hematoma is the result.

The hemorrhage caused a hematoma.

hématome vs Blister

Both are swellings

Blister is fluid-filled; hematoma is blood-filled.

A blister is on the skin surface.

文型パターン

B1

The doctor diagnosed a [hematoma].

The doctor diagnosed a hematoma.

B2

He developed a [hematoma] after [event].

He developed a hematoma after the fall.

A1

The [hematoma] is [adjective].

The hematoma is painful.

C1

Monitor the [hematoma] for [symptom].

Monitor the hematoma for infection.

B2

The [hematoma] was caused by [cause].

The hematoma was caused by trauma.

語族

名詞

hematology study of blood

形容詞

hematological related to blood study

関連

hemoglobin blood protein

使い方

frequency

4

よくある間違い
  • Using hematoma for any small scratch Use 'scratch' or 'cut'

    Hematoma is for blood pooling, not surface skin damage.

  • Pronouncing it 'he-ma-to-ma' with equal stress Stress the 'to' syllable

    The stress pattern is key to correct pronunciation.

  • Confusing it with 'tumor' Use 'hematoma' for blood, 'tumor' for abnormal cell growth

    They are different medical conditions.

  • Using it as a verb It is only a noun

    You cannot 'hematoma' someone.

  • Assuming it is always serious Most are minor

    Learners often think medical terms mean life-threatening.

ヒント

💡

Memory Palace Trick

Imagine a 'He-Man' character with a big red 'Toma' (tomato) on his arm.

💡

When Native Speakers Use It

Only when talking about sports injuries or medical advice.

🌍

Cultural Insight

People often fear the word because it sounds like 'tumor'.

💡

Grammar Shortcut

It is a noun, so it needs an article (a, the).

💡

Say It Right

Focus on the 'TOH' in the middle.

💡

Don't Make This Mistake

Don't call every bruise a hematoma.

💡

Did You Know?

It comes from the Greek word for blood.

💡

Study Smart

Group it with other '-oma' words like carcinoma.

💡

Formal Writing

Use it to add precision to medical descriptions.

💡

Listen Closely

Listen for it in medical TV shows.

暗記しよう

記憶術

HEMA (blood) + TOMA (swelling)

視覚的連想

A red, puffy balloon under the skin.

Word Web

blood injury bruise doctor swelling

チャレンジ

Describe a time you had a bad bruise using the word hematoma.

語源

Greek

元の意味: blood mass

文化的な背景

Can be alarming to hear in a non-medical setting.

Used primarily by medical staff or in sports commentary.

Often seen in medical dramas like Grey's Anatomy.

実生活で練習する

実際の使用場面

At the doctor's office

  • Is this a hematoma?
  • How long will it take to heal?
  • Does it need draining?

Sports

  • He got a bad hematoma.
  • The player is out with a hematoma.
  • Ice the hematoma.

Medical studies

  • The hematoma is resolving.
  • Evidence of a hematoma.
  • Post-operative hematoma.

First aid

  • Apply ice to the hematoma.
  • Keep the hematoma elevated.
  • Watch for swelling.

会話のきっかけ

"Have you ever had a bad hematoma from a sport?"

"Why do you think doctors use the word hematoma instead of bruise?"

"What is the most painful injury you have ever had?"

"Do you know the difference between a bruise and a hematoma?"

"How do you usually treat a sports injury?"

日記のテーマ

Describe a time you were injured and how you felt.

Write a short story about a doctor explaining an injury to a patient.

Explain the importance of using precise medical terminology.

Compare the cultural perception of 'bruise' versus 'hematoma'.

よくある質問

8 問

Usually no, but it depends on the location.

Ice, rest, and time.

No, never pop it; it can cause infection.

They are similar, but hematoma is more formal and implies pooling.

Depends on the size, usually 1-3 weeks.

Yes, usually when touched.

Yes, if writing about biology or health.

Hematomas or hematomata.

自分をテスト

fill blank A1

The doctor looked at the ___ on my leg.

正解! おしい! 正解: hematoma

Hematoma is a medical term for a bruise.

multiple choice A2

What is a hematoma?

正解! おしい! 正解: A collection of blood

It is a medical condition.

true false B1

A hematoma is exactly the same as a small paper cut.

正解! おしい! 正解: 間違い

A hematoma involves blood pooling under the skin.

match pairs B1

Word

意味

全て一致しました!

These are synonyms.

sentence order B2

下の単語をタップして文を組み立てよう
正解! おしい! 正解:

Subject-verb-object order.

fill blank B2

The ___ hematoma was near the brain.

正解! おしい! 正解: subdural

Subdural is a medical term for brain-related.

multiple choice C1

Which suffix indicates a swelling or mass?

正解! おしい! 正解: -oma

The -oma suffix is common in medical terms.

true false C1

Hematoma is only used in casual daily conversation.

正解! おしい! 正解: 間違い

It is a formal, medical term.

match pairs C2

Word

意味

全て一致しました!

These describe the location of the hematoma.

sentence order C2

下の単語をタップして文を組み立てよう
正解! おしい! 正解:

Passive voice construction.

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