Fibrosis is the formation of excessive fibrous connective tissue in an organ or tissue in response to injury or chronic inflammation. It is a result of the overproduction of collagen by fibroblasts during the healing process. While fibrosis is a normal part of tissue repair, excessive fibrosis can lead to the stiffening and loss of function of the affected tissue. Conditions like liver cirrhosis, pulmonary fibrosis, and cardiac fibrosis are examples of diseases characterized by pathological fibrosis.
