​Differential diagnosis of Systemic Diseases causing Constipation

​Differential diagnosis of Systemic Diseases causing Constipation:
-typhoid fever 
-rheumatological disorders such as amyloidosis or scleroderma
-neurological disorders such as autonomic neuropathy, paraplegia, sacral nerve damage due to pelvic tumor or pelvic surgery, multiple sclerosis, Parkinson’s disease
-hypercalcemia, hypokalemia, porphyria, uremia, 
-diabetes mellitus, hyperparathyroidism, hypothyroidism