Question:
Which of the following is not an autoimmune disease ?
Which of the following is not an autoimmune disease ?
Updated On: Apr 24, 2026
- Psoriasis
- Alzheimer’s disease
- Rheumatoid arthritis
- Vitiligo
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The Correct Option is D
Solution and Explanation
The question asks us to identify which of the given options is not an autoimmune disease. An autoimmune disease is a condition in which the immune system mistakenly attacks the body. Let's analyze each of the options:
- Psoriasis: This is a chronic autoimmune condition that causes the rapid growth of skin cells. Thus, it is an autoimmune disease.
- Alzheimer’s disease: This is a progressive neurodegenerative disorder characterized by cognitive decline. It is primarily linked to the accumulation of beta-amyloid plaques in the brain. It is not classified as an autoimmune disease.
- Rheumatoid arthritis: This is an autoimmune disorder that affects the joints, causing inflammation and pain. Therefore, it is indeed an autoimmune disease.
- Vitiligo: This is a condition where skin loses its pigment due to the destruction of melanocytes by the immune system. While it is related to the immune system, it is not typically classified as a systemic autoimmune disease like those affecting multiple organs or tissues directly.
Given the analysis, while vitiligo has an autoimmune component, it is not a generalized autoimmune disease compared to the others listed. The correct answer is:
Correct Answer: Alzheimer's disease is the one that is not categorized as an autoimmune disease.
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