(けっこう)

けっこう
noun
blood circulation; blood flow
1. the circulation of blood through the body; blood flow
The physical movement of blood through the body's vessels. Commonly discussed in health, wellness, and medical contexts, especially in relation to massage, exercise, hot baths, and conditions such as cold hands and feet or stiff shoulders.
血行(けっこう)(わる)い。
My circulation is poor.
運動(うんどう)すると血行(けっこう)()くなる。
Exercise improves blood circulation.
(あたた)かいお風呂(ふろ)(はい)ると、(からだ)血行(けっこう)促進(そくしん)される。
Taking a warm bath promotes the body's blood circulation.
(かた)こりは血行(けっこう)不良(ふりょう)原因(げんいん)(ひと)つだと()われている。
Poor blood circulation is said to be one cause of stiff shoulders.

Composed of (けつ) (blood) + (こう) (going, moving). Refers literally to the movement of blood through the circulatory system. Most often encountered in everyday health and wellness discussions rather than strict medical contexts.

COMMON COLLOCATIONS:

  • 血行(けっこう)()い: to have good circulation
  • 血行(けっこう)(わる)い: to have poor circulation
  • 血行(けっこう)促進(そくしん)する: to promote blood circulation
  • 血行(けっこう)()くする: to improve circulation
  • 血行(けっこう)不良(ふりょう): poor circulation (a fixed compound)
  • 血行(けっこう)改善(かいぜん): improvement of circulation

TYPICAL CONTEXTS:

  • Massage, bathing, and stretching advice
  • Explanations of why exercise is good for you
  • Descriptions of cold hands and feet (()(しょう))
  • Skincare and beauty writing (good circulation → healthy-looking skin)
  • Home remedies for stiff shoulders and back pain

SIMILAR WORDS:

  • 血流(けつりゅう): blood flow — more technical and medical-sounding, often used to describe flow through a specific vessel or organ.
  • 循環(じゅんかん): circulation — a general word for circulation of any kind; needs 血液(けつえき)循環(じゅんかん) to specifically mean blood circulation.
  • 血液(けつえき)循環(じゅんかん): blood circulation — a fully technical term, used in medical writing.

Register is neutral: 血行(けっこう) is appropriate in everyday conversation, health magazines, product descriptions (bath salts, massage oils), and casual medical advice.