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Home » Class 9 » Why do we fall ill » Types of Diseases

Types of Diseases

Last Updated on July 3, 2023 By Mrs Shilpi Nagpal

Question 1 Define communicable diseases?

Question 2 Define non-communicable diseases?

Question 3 Distinguish between acute and chronic diseases?

Question 4 What are Congenital diseases?

Question 5 What are Acquired diseases?

Question 6 What are the causes of acquired disease?

Contents

  • 1 Diseases and its causes
  • 2
  • 3 Types of Diseases
    • 3.1 Acute Disease
    • 3.2 Chronic Disease 
  • 4 Congenital Diseases
    • 4.1
    • 4.2 Acquired Diseases
    • 4.3
    • 4.4 1) Infectious or communicable
    • 4.5 2) Non-infectious or non-communicable

Diseases and its causes

Tissue make up physiological system or organ system that carry out body function. Sign or symptoms provide information about the presence of particular disease.

Types of Diseases

1) Acute
2) Chronic

Acute Disease

These last for only short period of time. These do not cause long term bad effect on human health.

For Example : Cold, cough, typhoid, cholera

In acute diseases, person get better and become well within a week or so, has no bad effect on our health, do not lose much weight, become short of breath, do not feel tired all the time, may not go to school just for few days.

Chronic Disease 

These last for a long time even as much as a life time.

For Example : Tuberculosis, diabetes, arthritis, cancer etc.

In chronic disease it is difficult for us to follow what is taught in the school, drastic effects on people’s health, persistent feeling of tiredness, ill over the years causes weight loss.

Congenital Diseases

These diseases are present since birth. They are caused due to genetic abnormality or due to metabolic disorders or malfunctioning of any order.

Acquired Diseases

These diseases are those which develop after birth. They are of 2 types:

1) Infectious or communicable

These diseases are caused by some biological agents or pathogens such as viruses, bacteria, protozoans, fungi etc. They are spread from one person to another by various physical contact such as air, water, food etc.


2) Non-infectious or non-communicable

These diseases are not caused by any infectious agent.

They are restricted only to those persons who are suffering from them.

They are caused from

1)lack of certain essential substances in our diet.
2)Uncontrolled growth of tissue in any part of body

3)Metabolic disorders
4)Injury
5)Degeneration of tissue

Filed Under: Class 9, Why do we fall ill Tagged With: acquired diseases, acute diseases, chronic disease, communicable, congenital diseases, disease, infectious, non-communicable, non-infectious

About Mrs Shilpi Nagpal

Author of this website, Mrs. Shilpi Nagpal is MSc (Hons, Chemistry) and BSc (Hons, Chemistry) from Delhi University, B.Ed. (I. P. University) and has many years of experience in teaching. She has started this educational website with the mindset of spreading free education to everyone.

Reader Interactions

Comments

  1. Nakul Joshi says

    March 24, 2017 at 4:40 pm

    Nice one

  2. Niraj Kumar Naresh sah says

    January 2, 2019 at 10:44 pm

    This answer is very important to me and I like this answer

    Thanking you

  3. Raj says

    March 3, 2019 at 11:51 am

    Nice

  4. Anjali says

    September 9, 2020 at 1:47 pm

    Thanks it’s Very helpful for me

  5. Anjali says

    September 9, 2020 at 1:47 pm

    it’s Very helpful for me thank you

  6. divyansnshu says

    December 8, 2020 at 1:49 pm

    nice questions with notes very – very important

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