Why Do Feet Swell?

It’s not unusual for your feet to look a little puffier at the end of a long day. Standing, walking, or even sitting for hours can cause fluid to gather in your lower legs and feet. This type of swelling—called mild oedema—usually goes away after a good night’s rest or with your feet propped up for a while.

But sometimes, swelling can be a red flag that something else is going on. Knowing the difference can help you take the right action quickly.

Normal Causes of Foot Swelling

• Hot weather – Heat causes your blood vessels to expand, making it easier for fluid to leak into surrounding tissues.

• Long periods on your feet – Gravity draws fluid downwards, especially if you’ve been standing still or walking a lot.

• Mild injury or overuse – After intense exercise or a minor bump, your body sends fluid to the area to help with healing.

• Pregnancy – Hormonal changes and extra fluid volume can make swelling common in late pregnancy.

In these cases, rest, gentle stretching, and elevating your feet usually do the trick.

When Swelling Could Be a Warning Sign

You should seek advice if:

• Swelling appears suddenly and is severe

• Only one foot or ankle is swollen without obvious cause

• The swelling is painful, red, or warm to the touch

• It comes with shortness of breath, chest pain, or fever

• It doesn’t improve after a few days of self-care

Possible underlying issues include:

• Infections

• Blood clots

• Heart, kidney, or liver problems

• Arthritis or gout

• Circulation problems

What You Can Do at Home

• Elevate your feet – Above heart level when resting.

• Stay active – Gentle movement improves circulation.

• Wear supportive footwear – Avoid flimsy shoes that strain your feet.

• Stay hydrated – Water helps your body balance fluid levels.

How a Podiatrist Can Help

At our foot clinic in Bishopbriggs, we can assess the cause of swelling and check for any underlying foot or ankle issues. If needed, we’ll work with your GP or other specialists to ensure you get the right treatment.

Mild swelling after a busy day can be normal, but sudden, severe, or persistent swelling needs attention. If you’re unsure, it’s always safer to get it checked. Your feet will thank you.