The natural history of Sheehan's syndrome is chronic. There is a long delay between peripartum hemorrhage and diagnosis. The majority of patients delivered at home and resided in rural areas where modern obstetric care was not readily attainable. The syndrome should be suspected in patients who present with asthenia-weakness, adrenal crisis and secondary amenorrhea. The symptoms that the patients usually had were secondary amenorrhea, asthenia-weakness, loss of axillary and pubic hair and failure to lactate. The important physical signs were loss of pubic and axillary hair, dry skin, slow relaxation phase of deep tendon reflex, hypopigmented areolar and pallor. The common laboratory features of the patients were anemia, eosinophilia, hypoalbuminemia, elevation of serum SGOT but not SGPT, hyponatremia and low fasting plasma glucose.