The length of time it takes to heal a wound is determined by the size and depth of the incision. It may take several years to fully recover. An open wound may require more time to heal than a closed wound. According to Johns Hopkins Medicine, most wounds heal in roughly 3 months. However, some wounds such as pressure sores or venous stasis ulcers can take much longer to heal. In general, if your physician has told you that your wound will take more than 8 weeks to heal, then you should consider seeing another doctor. There are several different types of wounds that can affect people's ability to move their bodies properly or eat normally. A wound care specialist can help identify the type of wound you have so that appropriate treatment can be done. The first thing you need to know about how long it takes to heal a wound is that it depends on the severity of the injury. If the wound is serious, then it may take longer to heal. For example, if you were to get cut off from your arm for several hours, it would hurt a lot at the site of injury and might cause you to go into shock. The medical team would probably put a vascular clamp on your arm to stop the blood flow and allow your body to begin the healing process. Under normal conditions, your arm would turn black and feel cold because no blood was reaching it; however, this is only true if you survived the initial injury.