U have not mentioned ur symptoms. Insulin-like growth factor-1 (IGF-1) is a hormone that, along with growth hormone (GH), helps promote normal bone and tissue growth and development. The test measures the amount of IGF-1 in the blood. IGF-1 is produced by the liver and skeletal muscle as well as many other tissues in response to GH stimulation. Decreased levels of IGF-1 also may be seen with nutritional deficiencies (including anorexia nervosa), chronic kidney or liver disease, inactive/ineffective forms of GH, and with high doses of estrogen. Increased IGF-1. Consult ur treating physician