What it is
A diabetic foot ulcer is an open sore, usually on the bottom of the foot, that can develop in people with diabetes. Nerve changes can reduce feeling in the feet, so small injuries or pressure spots may go unnoticed. Changes in circulation can also make it harder for skin to heal.
When people search for diabetic foot ulcer stages, they are usually looking for a classification system. Clinicians use several, and they are not identical. In general, they describe how deep the wound goes (skin only, into tissue, down to tendon, joint or bone), and whether infection or reduced blood supply is present.
Because the systems differ and a wound can change over time, a stage is a snapshot rather than a verdict. Only a licensed clinician can examine a wound, identify its cause and assign a stage or grade. Online descriptions cannot do that.
How it’s traditionally been approached
Traditionally, clinicians have used grading scales that move from superficial wounds, through deeper wounds involving tissue, tendon or joint, to wounds involving bone or extensive tissue loss. Some scales also add notes about infection and circulation, since those factors strongly shape how a wound is managed.
Wound care has commonly involved assessing the wound's cause, relieving pressure on the affected area, removing non-healthy tissue, keeping the wound environment appropriately managed, and addressing infection and blood flow when they are concerns. Which of these applies depends entirely on the individual evaluation.
Other options that specialists sometimes discuss include negative pressure wound therapy, which is well established, as well as skin substitutes and amniotic or placental grafts. The FDA status of these products varies, and many are regulated as minimally manipulated tissue rather than approved drugs. Coverage also differs by product and payer. For general reading on amniotic products specifically, amnioticdoctors.com is an independent resource and is not affiliated with WoundKare. Hyperbaric oxygen therapy is FDA-cleared for certain indications, including certain diabetic foot ulcers, and a clinician decides whether it is appropriate.
How the right wound care specialist may help
The right wound care specialist may help by examining the wound, looking at circulation and sensation in the foot, and explaining what the stage or grade means in plain language. A visit generally includes a history, a look at the wound and surrounding skin, and a conversation about next steps. Nothing is guaranteed, and plans are individualized.
Some specialists work with a wider team, which may include primary care, endocrinology, vascular, podiatry or infectious disease clinicians. A specialist may help coordinate these perspectives so that the whole picture, not only the wound, is considered.
Helpful questions to ask a licensed provider include: What is causing my wound? What stage or grade is it, and what does that mean? What are my treatment options and their tradeoffs? How long might healing take? Are any products or therapies regulated differently, and will my insurance cover them? What signs should prompt me to call you?
The whole-person view
Body, mind and stress affect each other. Living with diabetes and a slow-healing wound can bring worry, frustration and fatigue, and stress can in turn affect sleep, routines and how people care for themselves. Paying attention to the whole person is a reasonable part of any care conversation.
Some people find body-based support helpful for stress, such as the approaches listed through Somatic Experiences. Others prefer talk therapy, such as providers found through Therapists.plus. These are complementary options for well-being, not substitutes for wound care from a licensed clinician, and neither is better than any other approach.
Somatic Experiences: trauma and emotional healing →Somatic Experiences: embodiment and movement →Therapists.plus: mind body connection →
Keep in mind
- Seek medical care promptly for spreading redness, red streaking, increasing warmth or pain, pus, foul odor, fever or chills, or a wound that is rapidly getting worse.
- Call 911 or go to the ER for heavy bleeding, exposed bone or tendon, signs of sepsis such as confusion, rapid heartbeat or high fever with a wound, or a deep or severely contaminated wound.
- Licensed professionals should guide care for diabetic foot ulcers, since decisions depend on the cause, staging, circulation and overall health. This page does not diagnose or recommend treatment.
- If you are in emotional crisis, call or text 988 (the Suicide & Crisis Lifeline in the U.S.).
Not sure where to start? Answer a few gentle questions and choose who you’d like to hear from.
Frequently asked questions
What are the stages of a diabetic foot ulcer?
There is no single universal set of stages, because clinicians use several classification systems. Most describe how deep the wound is, from skin-level to involving tendon, joint or bone, and whether infection or poor circulation is present. A licensed provider must examine the wound to assign a stage or grade.
How do doctors stage a diabetic foot ulcer?
Doctors examine the wound's depth, size and appearance, check for signs of infection, and assess blood flow and sensation in the foot. They may use imaging or other tests when needed. The result is a grade or stage that helps guide the conversation about care.
Can I tell what stage my foot ulcer is at home?
No, a stage should be determined by a licensed clinician, since depth, infection and circulation can be hard to judge by eye. If you notice a new sore or any change in a wound on your foot, have it evaluated rather than relying on self-assessment. Seek care promptly for any sign of infection.
Does a higher stage mean a diabetic foot ulcer is an emergency?
Not always, but deeper or infected wounds are generally more serious and need prompt professional attention. Heavy bleeding, exposed bone or tendon, or signs of sepsis call for 911 or the ER. Ask your provider what your specific stage means for you.
How long does it take a diabetic foot ulcer to heal?
Healing time varies widely and depends on the wound's depth, cause, circulation, infection and overall health, so it cannot be predicted from a stage alone. A wound care specialist may be able to give an expected timeframe after an evaluation. Ask them how progress will be tracked.
Which specialist should I see for diabetic foot ulcer stages and care?
A licensed wound care specialist is a common starting point, and podiatrists, vascular, endocrine and infectious disease clinicians may also be involved. WoundKare can help you find independent specialists and educational resources. Ask any provider about the wound's cause, staging, options, expected healing time and insurance coverage.
Educational resource. WoundKare shares general information and connects people with independent wound care specialists. It is not medical advice, diagnosis or treatment. Talk with a licensed professional about your health.