重症化

Meaning

1. nvsvi
   aggravation (of an illness); exacerbation; worsening

Example sentences

• 「つわり」は軽く考えられがちですが、重症化すると「妊娠悪阻」と呼ばれ、点滴などの治療が必要になります。

  "Morning sickness" is often taken lightly, but when it becomes severe, it is called "hyperemesis gravidarum" and requires an IV and other forms of medical care.