痙攣(けいれん)

けいれん
noun
spasm; convulsion; cramp
1. spasm, cramp, muscle spasm
An involuntary, sudden contraction of muscles, often painful.
足(あし)が痙攣(けいれん)して動(うご)けない。
My leg is cramping and I can't move.
泳(およ)いでいる時(とき)に足(あし)が痙攣(けいれん)した。
My leg cramped while I was swimming.
目(め)の周(まわ)りが痙攣(けいれん)している。
The area around my eye is twitching.
Minor eye twitching is also called 痙攣(けいれん)
2. convulsion, seizure
A more severe form of involuntary muscle contractions, often associated with medical conditions like epilepsy or fever.
高熱(こうねつ)で痙攣(けいれん)を起(お)こした。
They had a convulsion due to high fever.
熱性(ねっせい)痙攣(けいれん) = febrile seizure

MEDICAL TERM:
痙攣(けいれん) covers a range of involuntary muscle contractions from minor cramps to serious convulsions.

TYPES:

  • 筋(きん)痙攣(けいれん): Muscle spasm/cramp
  • 熱性(ねっせい)痙攣(けいれん): Febrile seizure (in children with fever)
  • てんかん発作(ほっさ): Epileptic seizure

COMMON LOCATIONS:

  • 足(あし): Leg (most common for exercise-related cramps)
  • ふくらはぎ}: Calf (also called こむら{返(がえ)り)
  • 目(め)の周(まわ)り: Around the eye (stress-related twitching)
  • 手(て): Hand

VERB USAGE:

  • 痙攣(けいれん)する: to have a spasm/convulsion
  • 痙攣(けいれん)を起(お)こす: to have a convulsion/seizure

CAUSES:

  • 運動(うんどう): Exercise (muscle cramps)
  • 脱水(だっすい): Dehydration
  • 電解質(でんかいしつ)異常(いじょう): Electrolyte imbalance
  • 疲労(ひろう): Fatigue
  • 高熱(こうねつ): High fever (especially in children)

MEDICAL WARNING:
If convulsions are accompanied by loss of consciousness, last more than a few minutes, or occur repeatedly, seek emergency medical care.

general
Added 2026.1.17 17:52 · Revised 2026.1.19 21:17
06000/06301_keiren