Copper deficiency in the body will have symptoms in blood, symptoms in vision, and changes in hair and central nervous system. 1. Blood: Anemia is mainly manifested as pale face, weakness, thinness and fear of cold. If the anemia is more serious, it may affect the blood supply of various organs. 2. Vision: It is mainly manifested as color blindness and loss of vision. Patients with severe copper deficiency may suffer from insomnia. 3. Hair: Copper deficiency patients’ hair is not straight and easy to break. And the scalp is prone to seborrheic dermatitis. 4. Central nervous system changes: central nervous system changes are mainly manifested as epilepsy and intellectual decline. If copper deficiency occurs, then you can eat more meat, fish, animal liver in food helps to supplement, if there are symptoms of anemia, also need to supplement iron at the same time, so that you can alleviate the symptoms of anemia, and seek medical attention in time.