Most Important MCQs of Human Diseases -updated 2025 – GS

Parkinson is a disease of _____.
Correct Answer: Brain
Parkinson’s disease is a neurodegenerative disorder affecting the brain and movement control.
“Cataract” is a disease of:
Correct Answer: Eyes
Cataract affects the eyes by causing clouding of the lens and reduced vision.
“Jaundice” is the disease of:
Correct Answer: Liver
Jaundice primarily affects the liver and causes yellowing of the skin and eyes.
“Pellagra” is a disease of:
Correct Answer: Skin
Pellagra is a skin-related disease caused by deficiency of Vitamin B3 (niacin).
Myopia is a disease of ______.
Correct Answer: Eyes
Myopia (nearsightedness) is a vision condition affecting the eyes.
“Osteomyelitis” is a disease of:
Correct Answer: Bones
Osteomyelitis is a bacterial infection of the bones.
Malaria is a disease of _____.
Correct Answer: Blood (RBC), Liver and Spleen
Malaria affects red blood cells, liver, and spleen and is caused by Plasmodium parasites.
“Diphtheria” is a disease of:
Correct Answer: Throat
Diphtheria is an infectious disease of the throat caused by bacteria.
“Arthritis” is a human disease that affects _____.
Correct Answer: Joints
Arthritis is an inflammation of the joints causing pain and stiffness.
“Pneumonia” is a human disease that affects _______.
Correct Answer: Lungs
Pneumonia is an infection that primarily affects the lungs.
MCQs related to human diseases frequently appear in competitive exams as a part of general Science section. These questions are designed to assess a candidate's understanding of basic human physiology and their awareness of the human body. It’s not just about knowing the environment or current affairs — candidates are also tested on how well they understand themselves: what organs perform which functions, what diseases can affect those functions, and how the body responds to various conditions.
This knowledge reflects a candidate’s critical thinking and awareness of both internal and external factors affecting human life. Recognizing this importance, we have prepared a comprehensive list of Human Diseases MCQs that will prove helpful in your exam preparation. The list is provided below:
