Testosterone and androstenedione are both aliases for androgens, which are essentially the same as one of the body’s sex hormones, and a deficiency can lead to decreased libido, testicular atrophy, breast development, etc. in males. Androgens are important endocrine hormones in the human body, and they play an important role in both men and women. Androgens are important for the maintenance of normal male secondary sexual characteristics and reproductive function, and also stimulate erythropoiesis. When there is a primary reduction in the synthesis of androgens, or when there is a relative lack of androgens due to cirrhosis of the liver, this can lead to the loss of male secondary sexual characteristics and to gynecological manifestations such as breast development. In addition androgen deficiency may also lead to symptoms such as weakness, depression, and sexual dysfunction. If you experience the above symptoms or suspect that your androgen level is abnormal, it is recommended that you go to the hospital to have your blood androgen level measured in a timely manner, and if it is caused by a disease, you should seek medical treatment in a timely manner.