Androgen deficiency can lead to a decline in male characteristics and diseases. Androgen is secreted by the testes, and the following symptoms will occur if androgen is reduced in the body: 1. Male androgen deficiency mainly manifests itself in the form of loose and inelastic skin, a sharp and thin voice, shrinking testes, and slowly decreasing body hair. 2. The decrease in male androgens will also lead to urinary system diseases, such as frequent urination, urgent urination, prostatitis, etc., and will also cause the patient’s sexual function to diminish. 4. If male androgens decrease, blood vessels will also slowly age, causing patients to develop cardiovascular diseases, mainly manifesting as facial flushing, palpitations and panic.