Most people don’t think twice about the shape of their feet…until they start to hurt.
Flat feet are surprisingly common and, in many cases, go unnoticed for years. But over time, that lack of arch support can lead to tired, achy feet or even discomfort in the knees, hips and lower back.
Understanding what’s happening beneath you (literally) is the first step toward keeping your feet and the rest of your body comfortable and balanced.
What Exactly Are Flat Feet?
When someone has flat feet, the arch of the foot sits low or touches the ground entirely. This changes how the body absorbs shock and distributes weight. In some people, the arch appears when sitting or on tiptoes but disappears when standing (called flexible flat feet). For others, the arch stays flat all the time (rigid flat feet), which tends to be more uncomfortable.
How to Spot the Signs
Flat feet don’t always cause problems, but when they do, the clues are usually there:
Aching arches or heels after walking or standing
Feet that feel heavy or tired at the end of the day
Ankles that roll inward (known as overpronation)
Knees, hips or lower back pain that seems to appear out of nowhere
Shoes that wear down unevenly on one side
If this sounds familiar, it’s worth checking in with a podiatrist. A quick assessment can reveal how your feet are functioning and whether extra support might help.
Why Flat Feet Happen
Sometimes it’s simply genetic — you’re born with a lower arch. But other times, flat feet can develop gradually from:
Weak or stretched tendons
Weight changes or pregnancy
Past injuries
Medical conditions like arthritis or diabetes
Children often have flat feet when they’re little, and the arch usually forms as they grow. When it doesn’t, or when an adult’s arch collapses later in life, that’s when extra care can make a real difference.
How Flat Feet Affect the Rest of You
Your feet are the foundation for your whole posture. When that foundation flattens, it can shift how your ankles, knees and hips line up. Over time, this may lead to:
Heel or arch pain (often plantar fasciitis)
Strain in the knees or hips
Poor balance and fatigue after long days
A general sense of heaviness in the legs
You might not connect that ache in your knees to your feet, but the two are often linked.
What You Can Do About It
Having flat feet doesn’t mean you can’t stay active or comfortable — it just means your feet may need a little more support. Try:
Wearing structured shoes that support your arches and cushion your heels
Adding orthotics or insoles to help with alignment and shock absorption
Stretching and strengthening your calves and foot muscles regularly
Watching your activity balance and resting your feet when they start to feel tired
Your podiatrist can guide you on what type of support will suit your feet and lifestyle best.
Keeping Your Feet Happy This Summer
Flat feet might sound minor, but they can influence how your whole body moves. Paying attention to the early signs can prevent discomfort before it starts.
This summer, whether you’re exploring or spending long days on your feet at work, supportive shoes and a few smart habits can help you stay active without the soreness that often comes with flat arches.