A pregnancy test using a test strip showed negative, but my period is six days late. What's going on?

Patient's question:

No

Doctor's answer:

In your case, it may be due to a deficiency of yang and cold closure of menstruation or delayed menstruation caused by cold deficiency. Insufficient nourishment of blood due to blood deficiency, deficiency of qi and blood in Chong and Ren meridians, emptying of blood sea after menstruation, combined with qi deficiency and blood stagnation, leading to impaired blood circulation and resulting in closure of menstruation. It is recommended to use Wenzheng Granules for treatment.