Difference between Hypochondria and Hypochondriasis

What is the difference between Hypochondria and Hypochondriasis?

Hypochondria as a noun is a psychological disorder characterized by excessive preoccupation or worry about having a serious illness. while Hypochondriasis as a noun is a mental disorder characterized by excessive fear of or preoccupation with a serious illness, despite medical testing and reassurance to the contrary.

We hope you now know whether to use Hypochondria or Hypochondriasis in your sentence.