Definition of Posterior Deep Fissure
A posterior deep fissure is a tear in the lining of the anus, typically located at the back (posterior) side.

Common Causes and Symptoms
Causes include constipation, straining during bowel movements, and trauma. Symptoms often involve pain during bowel movements, bleeding, and itching.

Diagnostic Methods
Diagnosis is usually made through a physical examination by a healthcare provider.

Treatment Options
a. Conservative Treatments:

• Topical creams like Ano Metrogyl Cream, which contains lignocaine, metronidazole, and sucralfate, to reduce pain and promote healing.
• Dietary changes to prevent constipation.
  b. Surgical Options:
• Lateral internal sphincterotomy for chronic cases.

When to Seek Specialist Care
Consult a specialist if symptoms persist despite treatment or if there are recurrent fissures.