Kidney deficiency-related hair loss and kidney insufficiency-type hair loss are essentially the same thing; they basically mean the same thing. Kidney deficiency can be divided into several types: one is kidney yin deficiency, typically characterized by heat in the palms and soles, dry mouth, and dry tongue; another is kidney yang deficiency, where the most typical symptom is feeling cold; there is also kidney qi deficiency, which mainly manifests as lack of strength and dislike for movement; another one is kidney essence deficiency, which includes symptoms such as dizziness and blurry vision, and can cause hair loss, among other things; there is also unstable kidney qi, where symptoms include various involuntary losses, inability to control urination, and stool that is prone to diarrhea. These symptoms belong to either unstable kidney qi or some organs prolapsing. These are various manifestations of kidney deficiency. The main clinical manifestations of hair loss due to kidney deficiency are thinning hair, accompanied by a lack of vigor, fatigue, and weakness in the lower back and legs. Its treatment should primarily focus on nourishing the kidneys. On the other hand, the type of hair loss often referred to in men, caused by an excess secretion of androgens, which leads to early balding in men, is generally not caused by kidney deficiency and should not be treated by nourishing the kidneys.