The kidney pain after ejaculation is a manifestation of the lack of kidney essence and the failure of the vital gate fire. Chinese medicine believes that the waist is the house of the kidney, and kidney deficiency is lumbar pain, which is actually a deficiency of kidney essence. The kidneys are also known as the vital gate, which is the fire of life according to Chinese medicine, and the vital gate is strong, so the Yang is strong. If Chinese medicine treats these patients, they are required to change their bad habits, and they can take the oral Dougui Pill or Jin Kui Kidney Qi Pill to improve the symptoms of back pain after ejaculation.