How long is it normal for menstruation to be delayed?

Patient's question:

Normal to delay a few days for Aunt Flo

Doctor's answer:

First, if menstruation is delayed abnormally for a month, pregnancy should be considered. If it is delayed by 3-5 days every month, it is not a major issue, but everyone's situation is different. If the delay is accompanied by other adverse conditions, it still needs to be taken seriously.
In traditional Chinese medicine, menstrual problems are closely related to a woman's qi and blood condition. By regulating qi and blood, menstruation will naturally return to normal. Therefore, when treating delayed menstruation, qi deficiency should be addressed by replenishing qi, blood deficiency should be addressed by replenishing blood, and qi stagnation and blood stasis causing lower abdominal pain should be addressed by promoting blood circulation and resolving stasis. All of these can be regulated with Qi and Blood Capsules.