It hurts here.
Koko ga itai.
here (place physically close to the speaker, place pointed by the speaker while explaining); this place; these last (followed by a duration noun and a past sentence: time period before the present time of the speaker); these next ... (followed by a duration noun and a non past sentence: time period after the present time of the speaker); the next ...
indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and
painful; sore; exceeding
Readings: ツウ、 いた.い、 いた.む、 いた.ましい、 いた.める
Meanings: pain, hurt, damage, bruise