Tinnitus and lumbar weakness are often caused by kidney essence deficiency, according to Chinese medicine. Chinese medicine believes that the kidneys open the ears. If the kidney essence is deficient from birth, or if the kidney essence is not nourished after an illness, or if the kidney essence is gradually declining in old age, it can lead to a deficiency of kidney essence and a deficiency of kidney yin, which can lead to a deficiency of internal fire and disturb the ears. Both of them can cause deafness or tinnitus, which can be seen as tinnitus like cicada, day and night, especially aggravated when quiet, with gradual loss of hearing, or dizziness, soreness and weakness of the waist and knees, distress and insomnia, and frequent urination at night.