Diagnosis Plural: How to Pluralize diagnosis

Many discrepancies have come when it comes to differentiating ‘diagnoses’ and ‘diagnosis’. Some say that diagnosis plural is Diagnoses, while some also say that its Diagnose. This article will explain the differences and help you with the easiest way to remember it.

One thing I want you to understand about the English language is that no one is a master of all, there are times that you have to check the dictionary to confirm the exact spelling or meaning of a word before using it.

It doesn’t matter if you have a degree in the English language or so, some words naturally have a way of spelling them.

So don’t feel bad if you find it difficult to identify the plural of Diagnosis. In this article, I will explain it and help you understand how to use the word with respect to the right context.

The Plural of Diagnosis:

Diagnosis definition:

Diagnosis is the process of identifying the cause and solution to ill health or illness. Not only for ill-health alone, but situations can also be diagnosed to find the causes of the problem and seek a solution. In some contexts, it can be countable or uncountable. Thus the plural of diagnosis is “Diagnoses”.


  • She went for several diagnoses from different doctors until the final one discovered the issue.
  • Many diagnoses were taken on kids below 3 years to make sure they are free of polio.
  • Most experienced doctors give more attention to several diagnoses before giving answers.

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How is the Plural of Diagnosis, “Diagnoses“?

Diagnosis is a singular word; in getting the plural form, the “i” before the final “s”, is changed to “e” to indicate that it’s the in plural form. This is similar to words like Crisis – Crises etc.

Awesome one, I hope this article answered your question.

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Paschal Uchechukwu
Paschal Uchechukwu

Paschal Uchechukwu Christain is a professional and passionate SEO writer on Education, including homeschool, college tips, high school, and travel tips.

He has been writing articles for over 5 years. He is the Chief Content Officer at School & Travel.

Paschal Uchechukwu Christain holds a degree in Computer Science from a reputable institution. Also, he is passionate about helping people get access to online money-making opportunities.

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