In Chinese medicine, night sweats are considered to be a result of an imbalance between Yin and Yang, with a deficiency in Yin Qi and an excess in Yang Qi. This deficiency in Yin leads to internal heat, which causes the leakage of body fluids, manifesting as excessive sweating during sleep. Hair loss can have many causes, including physiological hair loss, aging-related hair loss, and hereditary hair loss, so it is not necessarily due to a deficiency in kidney Yin. However, if a person experiences both night sweats and hair loss, it is possible to first consider the presence of a kidney Yin deficiency causing these symptoms.