通院する receive regular outpatient treatment; see a doctor regularly
- 1か月の通院を要するけが
- an injury requiring one month's treatment as an outpatient
- もう3か月も通院している
- I've been seeing a doctor regularly for three months now.
- 通院患者an outpatient
- 通院患者が急増した
- The number of outpatients has suddenly increased.