Erectile weakness belongs to erectile dysfunction, and patients can be treated for the cause through a combination of Chinese and Western medicine. If it is caused by blood circulation disorder in the cavernous body of the penis, sildenafil and tadanafil can be taken to improve blood circulation and enhance arteriovenous pressure in the cavernous body of the penis, thus restoring male erectile function. If it is caused by cavernous arteriovenous fistula, arteriovenous fistula repair is needed. If it is caused by dampness and heat in the lower jiao, gentian diarrhea liver soup can be taken; deficiency of kidney yang can be treated with Jin Kui Kidney Qi Pill and Kirin Pill; deficiency of kidney yin can be treated with Liu Wei Di Huang Pill and Zuo Gui Pill; stasis of blood can be treated with Blood Mansions and Stasis Pill and Tao Hong Si Wu Tang.