I am currently 20 weeks pregnant. My cervix length is 3 cm. Is it too short to go for vaginal stiches. I am diabetic also. Please suggest.

As above. U obgyn is the best one to discuss with u his finding and give u advise . However what u have listed sound normal . Good luck.
Normal. A cervical length of 3 cm is in the normal range. Unless there are extenuating circumstances this does not require intervention. Good luck!