Minor hair loss is a normal part of the hair-growing cycle. Each hair lives about 4.5 years, falls out and is replaced in about six months. If your hair is falling out in clumps, certain lifestyle practices or changes may be to blame, but consult a physician to rule out underlying medical conditions.
Blood draw: Removal of blood, usually by venipuncture (phlebotomy, venous blood sampling). Common term for blood sampling for laboratory analysis.
blood test. n. 1. An analysis of a sample of blood, especially for diagnostic or therapeutic purposes. 2. The process of obtaining blood for such a test: went to the clinic for a blood test. blood test. n.