An anal dilator No. 4 is a medical instrument used for the gradual widening of the anal canal to treat conditions like anal stenosis, fissures, or postoperative anal narrowing. It helps in relaxing the anal sphincter, relieving constipation, and facilitating medical inspections or procedures. The No. 4 size is a specific dimension used by medical professionals for controlled dilation.

Treating anorectal conditions:

It is used to widen the anal opening to address conditions such as anal stenosis (narrowing), fissures (tears), or post-surgical narrowing.

Relieving constipation:

Gentle dilation can help relax the anal sphincter and facilitate the passage of stool, especially in cases of chronic or functional constipation.

Post-surgical care:

Dilators are used after anal or rectal surgeries to prevent scar tissue from causing a stricture and to improve anal function during recovery.