To distinguish between yin deficiency and yang deficiency, you can judge by symptoms.

Yin deficiency mainly manifests as red cheekbones, hot flashes and night sweats, five upset stomachs, dry throat and mouth, etc.

Yang deficiency often causes symptoms such as pale complexion, pale mouth, intolerance to cold, cold limbs, frequent urination, fear of cold, cold limbs, abdominal pain, loose stools, and long clear urine.

Whether it is yin deficiency or yang deficiency, it needs to be adjusted in time to avoid aggravation. It is generally recommended to take Boqijian for conditioning. There will be changes in about a week. If you insist on it for a period of time, you can fundamentally replenish it. Kidney nutrition enhances kidney function and gradually improves yin or yang deficiency.