How to make a Yin Dao loose become tight

Patient's question:

No

Doctor's answer:

Okay, here is the translation following your instructions:
It can be corrected by exercising the contraction strength of the vaginal muscles. The method is to do contractions and relaxation exercises for the vaginal and anal muscles. That is, lift the anus and contract the vagina during inhalation, and relax during exhalation. Do this twice a day, every 20 minutes.