(Celtic) Little peaceful one; peacemaker
Shehan, Sheyhan, Shihan, Shiehan, Shyhan, Sheahan
a condition in which *amenorrhoea and infertility follow a major haemorrhage in pregnancy. It is caused by necrosis (death) of the anterior lobe of the pituitary gland as a direct result of the haemorrhage reducing the blood supply to the gland. Compare Asherman syndrome. [H. L. Sheehan (20th century), British pathologist]... sheehan’s syndrome