Buying guide

How to Tell If You Have Flat Feet: A Simple At-Home Test

Before you buy a single pair of shoes, it helps to actually understand your arch type. This is the same simple test I used years ago to confirm what I'd already suspected — and what to do with the answer once you have it.

The wet footprint test

This is a low-effort, at-home way to get a general sense of your arch type. It won't replace a professional assessment, but it's a genuinely useful starting point.

  1. Wet the sole of your bare foot thoroughly.
  2. Step firmly onto a surface that will show a clear footprint — a piece of thick paper, cardboard, or a dry pavement/patio surface works well.
  3. Step off and look at the shape your footprint leaves behind, particularly the area along the inner edge, between your heel and the ball of your foot.

Reading your results

  • High arch: You'll see a thin band, or almost no connection, between your heel and forefoot along the inner edge.
  • Normal arch: You'll see a moderate curve inward, with roughly half the middle of your foot showing in the print.
  • Flat/low arch: You'll see most or all of your foot's width along the inner edge, with little to no curve.

See our arch comparison diagram on the homepage for a visual reference of how a normal arch differs from a flat arch.

One test, one data point A single wet-footprint test on one day is a snapshot, not a full picture. Arches can appear slightly different depending on how much weight you put through your foot, time of day, and even recent activity. If the result surprises you or matters for a purchase decision, repeat it a few times.

What to do next with your result

If your test suggests a flat or low arch, that's useful information — not a diagnosis, and not something that requires immediate action if you're not experiencing discomfort. If you are noticing foot, ankle, knee, or lower back fatigue, it's a reasonable signal to:

  • Look at stability or motion-control shoes rather than neutral cushioned shoes — see our best shoes for flat feet roundup to start.
  • Pay attention to how long you can comfortably stand or walk in your current shoes, and whether that improves in a more supportive pair.
  • Consider whether your discomfort is new, worsening, or has been stable for years — that distinction matters for whether to see a specialist.

When to see a podiatrist instead of just buying shoes

Shoes can meaningfully improve comfort, but they're not a substitute for medical care. Consider seeing a podiatrist if you experience:

  • Persistent or worsening pain in your feet, ankles, knees, or lower back
  • Sudden changes in your arch or foot shape
  • Numbness, tingling, or swelling that doesn't resolve
  • Pain that doesn't improve after a reasonable trial (several weeks) of more supportive footwear

This site shares personal experience and general buying guidance, not medical advice. See our about page for more on how we approach this content.

Frequently asked questions

Is the wet footprint test medically accurate?

It's a useful, informal starting point, not a medical diagnosis. It gives you a general sense of your arch height, but a podiatrist can assess arch flexibility, gait, and pronation far more precisely if you need a clinical answer.

Can flat feet develop later in life, or are you born with them?

Both are common. Some people have flat feet from childhood, while others develop "fallen arches" later in life due to factors like aging, weight changes, pregnancy, or repetitive strain on the tendons that support the arch.

Do flat feet always cause pain?

No. Many people with flat feet have no pain or symptoms at all. Footwear and lifestyle factors become more relevant if and when discomfort actually shows up.

Written by Arshak Nersisyan

I'm 32, based in Yerevan, Armenia, and I have grade 2 flat feet myself. Every review, guide, and comparison on this site is based on my own first-hand experience shopping for and wearing footwear, not clinical training. Read more about my approach, or see my medical disclaimer.