Can kidney deficiency cause hand tremors?
In general, whether kidney deficiency causes hand tremors depends on the specific type. Kidney yang deficiency usually does not lead to hand tremors, whereas kidney yin deficiency may result in such symptoms. The detailed analysis is as follows:

Individuals with kidney yang deficiency primarily suffer from insufficient yang qi, commonly experiencing cold intolerance, soreness and weakness in the lower back and knees, loose stools, etc. The pathological changes mainly involve impaired warming and transformation functions of internal organs and do not directly affect limb tremors; therefore, hand tremors are rarely seen. In contrast, those with kidney yin deficiency have inadequate yin fluids, which fail to nourish internal organs and meridians properly. This often leads to liver yin deficiency and internal stirring of deficient wind, potentially causing hand tremors. These individuals frequently exhibit additional symptoms such as heat in palms and soles, dry mouth and throat, tidal fever, night sweats, dizziness, and tinnitus.
Daily regulation should be targeted accordingly. People with kidney yang deficiency should stay warm and consume more warming foods such as lamb and longan. Those with kidney yin deficiency should follow a light diet, eat nourishing-yin foods like silver ear fungus and goji berries, avoid staying up late, and prevent excessive fatigue that could further deplete yin fluids.