According to Western medicine, it is usually believed that the two sides of the back pain after ejaculation is due to lumbar muscle strain or genitourinary infection, due to lumbar muscle strain can not withstand the intense movement of sexual life, or urinary tract, reproductive tract infection or prostatitis caused by inflammation stimulation, so after ejaculation occurs in the back of the two sides of the pain. According to Chinese medicine explanation is relatively intuitive, Chinese medicine believes that the waist is the capital of the kidney, according to Chinese medicine identification, after ejaculation on both sides of the waist pain belongs to the kidney deficiency back pain, because the location of the kidney in the waist, and the waist is covered by the region is also the essence of the kidney to cover the region, if the usual kidney essence is sufficient to the waist and spine is powerful, the insufficiency of the kidney essence will appear back pain, lumbago, leg weakness. Normally, due to the deficiency of kidney qi and kidney yang, so the waist meridian lacks the warmth of yang, and when the outside world after strenuous exercise or ejaculation, resulting in yang deficiency occurs lumbago, this lumbago is characterized by soreness and pain and is afraid of cold, like warmth. General Chinese medicine identification is usually the use of Jin Gui Kidney Qi Pill or Right Angelica Pill for treatment, it is recommended that you go to a regular hospital to consult a doctor after use.