斑点

1. Origins, structure, and basic meaning

• Structure: 斑点 (はんてん) is a noun for a spot or patch of contrasting color or texture on a surface.
• Basic usage: 葉に茶色い斑点が現れる makes marks on a leaf the appearing subject, while 背中に青い斑点がある locates a fish’s distinguishing pattern.

2. Common pitfalls and similar expressions

• Developed spot and inherent marking
  • 斑点が現れる may indicate a newly developed abnormality, whereas 斑点がある can describe a natural marking. Not every spot is evidence of disease.