Can kidney yang deficiency lead to the disappearance of morning erections?
In general, whether kidney yang deficiency leads to the disappearance of morning erections depends on the specific circumstances. Mild kidney yang deficiency usually does not cause loss of morning erections, but more severe cases may result in this condition. The detailed analysis is as follows:

If kidney yang deficiency is mild, symptoms of insufficient yang energy may not be obvious, and the reproductive function of the kidneys remains largely unaffected, so morning erections may still occur normally. In such cases, yang energy can be replenished through dietary adjustments, moderate exercise, and other lifestyle changes to prevent worsening of the condition.
However, when kidney yang deficiency is severe, the depletion of kidney yang can impair the function of the reproductive system, suppress erectile function, and lead to the disappearance of morning erections. Additional symptoms such as sensitivity to cold, coldness and pain in the lower back and knees, and low energy or lethargy may also appear. Targeted treatment to warm and strengthen yang energy is needed in these cases.
In daily life, one can support kidney health and improve yang deficiency by consuming warming and nourishing foods such as lamb and leeks, engaging in regular physical activities like jogging or tai chi, avoiding late nights and excessive fatigue, and keeping the lower back warm.