The Full form of BT is Bleeding Time. The BT test determines how quickly a man’s blood clots to stop bleeding. This test is used to check the amount of time taken by the blood to clot in order to stop bleeding. The test is a basic assessment of how well your blood platelets work to form clots and involves making small punctures in your skin. Platelets are tiny cell fragments that circulate in your blood. They’re the first cells to react to a blood vessel injury. They seal off the wound to prevent more blood from escaping. Most people will never need a BT test. You may need to have a BT test if you’ve been experiencing bleeding that won’t stop, especially from small incisions, cuts, or punctures. Your doctor can choose from a number of tests to evaluate your platelet function. A Bleeding Time (BT) test is a common test to screen patients having prolonged bleeding times. Abnormal results from a BT test can be a sign that you need more in-depth testing to find the cause of your prolonged bleeding. It could mean you have an acquired platelet function defect, which is a condition that develops after birth and affects how well your blood platelets work.