Is a weak erection a Yin deficiency?

The penis erection without firmness may be yin deficiency.
Penile erection without firmness belongs to the category of impotence in Chinese medicine, impotence is located in the zongjian, yin deficiency generally refers to the deficiency of kidney yin, kidney yin insufficiency can be generated within the fire heat, burn the zongjian, so that the patient has the symptom of erection without firmness.
In addition, impotence is also characterized by the failure of vital fire (weakness of kidney yin, which reduces the function of warming and promoting the operation of qi and blood), liver depression and stagnation of qi, dampness-heat infiltration (dampness and heat invade the intestinal tract, bladder, yin, lower limbs, etc.), and deficiency of the heart and spleen.
If impotence is caused by deficiency of kidney yin, Zhi Bai Di Huang Wan can be taken internally to nourish the liver and kidney, clear heat and reduce fire. This medicine is mainly composed of Zhi Bai, Shan Yao, Ze Xie, Mudan Pi and Shu Di Huang, etc. It can treat the symptoms of lumbar and knee soreness and weakness, spermatorrhea and premature ejaculation, and impotence caused by deficiency of liver and kidney yin and high fire. The adverse effects and contraindications of this drug are not clear; it is not recommended for people with cold and fever.
Patients with erectile dysfunction should actively go to the hospital for consultation, and take the medication under the guidance of a physician’s diagnosis and standardization of taking, do not self-medication.