Which of the following symptoms indicates Spleen and Kidney vacuity?

The symptom that indicates Spleen and Kidney vacuity is characterized by a thin, clear discharge. In Traditional Chinese Medicine, the Spleen is associated with the transformation and transportation of fluids, while the Kidney is linked to the essence and the overall vitality of the body. When both the Spleen and Kidney are deficient or vacuous, it can lead to an inability to effectively control and nurture fluid balance, often resulting in a discharge that is thin and clear. This can show up in various forms, but a clear discharge typically suggests a deficiency pattern rather than an excess or inflammatory one.

In contrast, sticky, foul-smelling discharge would typically indicate a different pathology, often associated with dampness or heat conditions, rather than a vacuity scenario. A swollen, inflamed area suggests a more acute inflammatory response or an excess condition, not aligned with the concept of vacuity. Persistent itching could relate to other disharmonies, such as blood deficiency or heat in the blood, rather than specifically pointing to Spleen and Kidney vacuity.