头发灰是民间广泛应用的止血药、内服及外用均有效。我们对头发灰的止血作用与成份作了初步分析。实验结果将头发烧成灰、制成50%煎剂备用。一、对凝血时间的影响:先测定犬及兔正常凝血时间,然后静脉注射50%头发,煎剂0.8—1.0毫升,5—24分钟后再测凝血时间。结果发现给药后凝血时间由平均 Hair ash is widely used as a hemostatic agent, both internally and externally. We made a preliminary analysis of the hemostatic effects and ingredients of hair ash. The result of the experiment was to make hair ash and make 50% decoction. First, the impact on clotting time: first measured the normal clotting time in dogs and rabbits, then intravenous injection of 50% hair, decoction 0.8-1.0 ml, 5-24 minutes after the clotting time. As a result, it was found that the coagulation time after administration was averaged.