To consult or be examined by a doctor when ill or injured; often written in kana as '医者にかかる'.
風邪の症状が長引くので、週明けに医者に掛かるつもりだ。
My cold symptoms have lingered, so I plan to see a doctor at the beginning of the week.
頭が痛くて吐き気もするから、すぐに医者に掛かったほうがいい。
Since you have a headache and nausea, you should see a doctor immediately.
子どもが熱を出したので、近所の小児科に医者に掛かった。
My child had a fever, so I took them to the nearby pediatrician.