There are many causes of constipation, for example, medications; poor bowel habits; low fiber diets; possibly abuse of laxatives; hormonal disorders; diseases primarily of other parts of the body that also affect the colon; and high levels of estrogen and progesterone during pregnancy.
mg: Abbreviation for milligram, a unit of measurement of mass in the metric system equal to a thousandth of a gram. A gram is equal to the mass of one milliliter, one thousandth of a liter, of water at 4 degrees C. MG (in capital letters) is the abbreviation for the disease myasthenia gravis. Search MedTerms:
Milligram is a unit of mass in metric system and it is mostly used in medicine and pharmacy. There are 1 000 000 (one million) mg in 1 kg (1000 grams in 1 kg * 1000 mg in 1 gram = 1 000 000). The abbreviation for milligram is mg.