Hello dear,
I understand your concern.
As per your history the cevix length is normal but the internal is is dilated.
The cervical insufficiency or incompetency means the in capability of cervix to hold the fetus.
It can be due to short cervical length which is less than 2.5 cm and dilated internal os.
The cervix length is 4 cm in your case which is taken as normal parameter but dilated os might be definitely considered.
And putting of cervical stich might prevent the miscarriage .
So discuss regarding that with your doctor.
In case of cervical incompetency the cervical stich prevents the complications.
So relax.Nothing to worry.
Take good rest and avoid physical strain.
Hope this helps.
Best regards...Dr.Srilatha

Hallow Dear,

Your diagnosis and reports suggest that your cervix (mouth of the uterus) is week. If left untreated, it may lead to abortion between 14 to 28 weeks of pregnancy. This condition was first explained and detected by great Indian Obstetrician & Gynaecologist Dr. V. N. Shirodkar. He devised a surgery in which tape was tied around the cervix to strengthen the cervix. Now this surgery is done with some modifications in it where in a nylon stitch is taken around the cervix to strengthen it. The stich is removed before you go in labour.

This is a simple surgery which gives great results.

I advise my patients to lie in a head low position with foot end of the bed raised by 4"-6" to prevent the pressure on the stitch. May be after stitch, for few days, you may be given some uterine relaxants.

I hope this takes away your stress.

Dr. Nishikant