Arterial.
If bleeding is venous, the blood will flow evenly from the wound. If bleeding is arterial, the blood will spurt unevenly due to higher blood pressure in the vessel. Arterial blood is also very bright red in color, as venous blood is a darker red.
Arterial. It will drain you out quick.
Arterial BleedingThis is the least common and most dangerous type of bleeding. It involves bright red blood that comes out in large volume, and in spurts that correspond with each beat of your heart.
Two types of bleeding are the most life-threatening:internal vs. superficialarterial vs. venousThe most severe type of bleeding is arterial. Internal bleeding may be from a "small bleed" so while internal bleeding is serious, it is NOT the most severe type. For example, bleeding ulcer is internal bleeding and while it can be serious and can become life-threatening, it may not necessarily be severe.Traumatic internal bleeding is usually severe, serious, and life-threatening, but bleeds may start small and progress without emergency surgery; yet, there is usually enough time to get a trauma victim from the ER to the OR.
arterial bleeding is the most serious type of external bleeding. this type of bleeding can lead to a large amount of blood loss in a short period of time because the blood flows at a faster rate and is less likely to clot.
Arterial bleeding produces the fastest blood loss and is the most difficult to control. Arteries carry oxygenated blood at high pressure and if severed, can result in rapid and profuse bleeding. Immediate medical attention is necessary to control arterial bleeding.
The primary differences between venous blood and arterial blood are that arterial blood is oxygenated, under great pressure, and is moving from the heart, and that venous blood is deoxygenated, under low pressure, and is moving towards the heart.
in the brain and internal bleeding
Worst case scenario you bleed out and die. Venous bleeds are generally less-serious than arterial bleeds so you would most likely have time to get to a hospital. If you go to a reputable piercer, you shouldn't worry about that. Tongue piercings are common so they have a lot of experience.
Arterial thrombosis is associated with an atherosclerotic plaque being ruptured. It is hence associated with high pressure arteries. The thrombus is made of many platelets and contains little fibrin. It can lead to stroke or acute myocardial infarction in the most severe cases. Venous thrombosis is caused by vessel injury or static blood flow in a low-pressure venous system. The thrombus is made of fibrin and red blood cells with very little platelets. It can detach to form an embolus and may cause pulmonary embolism.
For the most part, a simple scrape will give you what's called "Capalary bleeding", surface bllod vessels that will not cause any life threatening problems. Other possibilities would be Arterial bleeding (bleeding from an artery - possibly life thretening) where the blood will be bright red and will spurt from the wound in time with the heartbeat. Also would be Veinous bleeding (bleeding from a vien) where the blood will be very dark red or purple, and will flow freely.