I often hear that menopausal symptoms such as hot flushes are due to Kidney-Yin deficiency: not so! Half of the menopausal women I see have a Pale tongue and suffer from Kidney-Yang deficiency. That is because Kidney-Jing deficiency may manifest with a Yin or Yang deficiency; indeed, many herbs that nourish Jing are in the category of tonics of Kidney-Yang (e.g. Bu Gu Zhi, Yi Zhi Ren, Suo Yang, Jiu Zi, Sha Yuan Ji Li).
By Dominicus Johannes Bergsma (Own work) [CC BY-SA 4.0 (http://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons