Decreased erectile hardness after 30 years old can be treated with medication, psychotherapy, and combined with life conditioning to improve clinical symptoms. 1. Drug treatment: for decreased erection hardness after 30 years old, some type 5 phosphodiesterase inhibitors, including tadalafil, sildenafil, etc., can be applied according to the doctor’s instruction; for those who have abnormal endocrine function, testosterone substitution therapy can be used; the side-effects and adverse reactions of the drugs need to be noted, so please use the above medications under the guidance of the doctor. 2. Psychological treatment: usually reduce the pressure of life, psychological pressure; if there are adverse mental emotions, including anxiety, depression, etc., timely psychological counseling should be carried out. 3. Life regulation: life should strengthen the diet, increase sports, can improve the vascular function and erectile function. There are many reasons for the decline in erectile hardness after the age of 30, you should actively seek medical advice and standardized treatment under the guidance of the doctor to avoid aggravation of the condition.