Non-healing wounds occur due to "tissue hypoxia", i.e., a lack of healing oxygen to the area. This is common in diabetics and in people who are bed-ridden, but could happen in anyone with compromised blood flow (blood carries oxygen to a wound for healing but also carries dead cells away from the wound). A compromised blood flood would be due to a narrowing of the vessels.

BPT has a number of actions that may positively affect the healing of these tissues.  Those being: 

• Attacking infections that may remain within the blood
• Increased oxygenation of the tissues therefore reducing pain
• Improving the function of the blood, rheological improvements, i.e. blood flow, oxygen carrying capacity and increased red blood cell production
• Vasodilation, stimulation of micro-circulation and relaxation to the nervous system