Unfortunately, there is nothing that you can do for a collapsed vein and this will be slowly dissolved away into your body. As a replacement, other smaller veins will grow around the lost vein. This can be problematic because now that you have lost your vein, getting intravenous injections in place is going to be quite impossible unless you have an expert doctor or nurse at hand. Since this is a problem that people who have multiple injections in their arms usually face like diabetics and drug users, your only hope is to change the area of injection to another part of the body. Again, the reason for a collapsed vein has to be borne in mind and the same mistake while injecting should not be made again.
Veins and arteries form the vascular system or the circulatory system. Veins transport deoxygenated blood to the heart and arteries transport oxygenated blood away from the heart. The reason for veins to appear blue in color is because they are carrying blood that is low in oxygen content, which gives the blood its particular hue. Veins are made up of a type of fibrous tissue called connective tissue on the outside. Below this layer, there is a layer of smooth muscle before finally ending in endothelial cells that line the inside of the venous tube. These cells are shaped in a certain way to avoid a back flow of blood, especially when fighting the force of gravity. The problem of a collapsed vein is something that you would probably not experience with an artery, if you could locate an artery in your hand. This is because the vein contains weaker smooth muscle unlike arteries that are made of a tougher type of muscle. Because of this weakness, when a person is injected, the vein temporarily collapses with the vacuum created by the sucking of blood back into the syringe. This can be avoided by locating the vein correctly to begin with, so that the vacuuming doesn’t have to occur.