What are the key differences between sclerosis and fibrosis in terms of their impact on the body's tissues?

Sclerosis and fibrosis are both conditions that involve the thickening and hardening of tissues in the body. However, the key difference between them lies in the underlying causes and the types of tissues affected. Sclerosis is typically associated with the abnormal growth of connective tissue, leading to the hardening of tissues such as blood vessels or nerves. On the other hand, fibrosis is characterized by the excessive formation of scar tissue in response to injury or inflammation, which can affect organs like the lungs or liver. Overall, sclerosis and fibrosis can both disrupt the normal function of tissues and organs, but they differ in their specific effects on the body.