Connective tissue is the most abundant type of tissue in our body. The shape and form of the body, including its organs, muscles, bones, and cartilage, are determined by the properties of connective tissue. Skin, blood, blood vessels, adipose tissue (fat cells), tendons, ligaments, and teeth are various examples of connective tissue. Therefore, the term “connective tissue diseases” encompasses a wide range of ailments; some of them are inherited, while others develop as autoimmune diseases due to excessive inflammation. Examples of autoimmune connective tissue diseases are scleroderma, lupus, rheumatoid arthritis, vasculitis (inflammation of blood vessels), mixed connective tissue diseases, etc.