Itchy body but no growths, this condition may be pruritus. Pruritus is mostly seen clinically as a result of some allergic factors, such as itching symptoms due to eating some allergic food, or inhaling certain allergic particles, or being in contact with certain allergenic substances. Some people have allergic symptoms, but do not produce a certain rash, but only show itching. However, in addition to allergic factors, there are also other causes, such as systemic factors that cause itching. The most common clinical factors are diabetes mellitus that causes itching of the skin, or abnormalities in thyroid function, which can also cause itching of the skin. In addition, liver and kidney insufficiency can produce reduced moisturizing function of the skin and eventually dry skin, inducing the occurrence of itchy symptoms.