HEM has various meanings in the Medicine category. Discover the full forms, definitions, and usage contexts of HEM in Medicine.
Hemorrhoids, also called piles, are swollen and inflamed veins in your anus and lower rectum. Hemorrhoids may result from straining during bowel movements or from the increased pressure on these veins during pregnancy, among other causes.
MedicineThe diagnosis, treatment, and prevention of diseases of the blood and bone marrow as well as of the immunologic, hemostatic (blood clotting) and vascular systems. Because of the nature of blood, the science of hematology profoundly affects the understanding of many diseases.
MedicineA general term for a number of disorders of blood clotting, in which one or another protein in the blood-clotting pathway is defective or missing.
MedicineBleeding or the abnormal flow of blood.A hemorrhage may be "external" and visible on the outside of the body or "internal," where there is no sign of bleeding outside the body. Bleeding from a cut on the face is an external hemorrhage. Bleeding into the spleen or liver are examples of internal hemorrhage. The term "hemorrhagic" comes from the Greek "haima," blood + rhegnumai," to break forth; a free and forceful escape of blood.
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