How to say "heal" in Japanese

Choosing the right word
  • 治すなおすJLPT N2approx.Common
    godan verb, transitive verbThe transitive sense of 'heal': a doctor, medicine, or treatment cures an illness or heals a wound; use it when someone or something does the healing, such as a doctor curing a patient.
    あの医者いしゃは彼かれのがんを治なおしてくれるかもしれない。↗
    That doctor may cure him of his cancer.
  • 治るなおるJLPT N4approx.Common
    godan verb, intransitive verbThe intransitive sense of 'heal': the illness, injury, or person gets better, recovers, or is cured. Use it when a cold or wound heals on its own, or when you say you have recovered.
    2週間しゅうかんもすれば自然しぜんに治なおります。↗
    It will go away by itself in two weeks.

Use 「治す」 for the active sense of 'heal', where a doctor, medicine, or you yourself cure an illness or wound, and 「治る」 for the intransitive sense, where the illness or person simply gets better or recovers.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
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JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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