These are most dense in nasal conjunctiva, least dense in upper temporal fornix and absent in palpebral mucocutaneous junction and limbus.)

The formation of varices at the mucocutaneous junctions of small or large bowel stomas in patients with portal hypertension can be a source of massive or recurrent haemorrhage.

The lesions that occur in this disease are irregular thickenings and masses over the skin of the digits, body, pouch, and mucocutaneous junctions of the lips and conjunctiva.

Other problems that can contribute to anal itching include pinworms, hemorrhoids, tears of the anal skin near the mucocutaneous junction (fissures), and skin tags (abnormal local growth of anal skin).