A swollen foot may signal inflammation, poor circulation, or an underlying health condition like heart or kidney problems
Have you ever noticed your shoes feeling tighter during hot weather? You’re not alone. Swollen feet in summer is a common issue, especially in hot and humid climates like Houston, Texas. This uncomfortable (and sometimes painful) condition can affect anyone, whether you’re on your feet all day or just trying to relax by the pool.
In this article, we’ll break down why your feet swell more in the summer, the medical and environmental causes behind it, and what you can do to prevent or relieve the swelling.
Why Do Feet Swell in Hot Weather?
Foot swelling—also known as peripheral edema—can occur for several reasons, but heat is a major trigger. When your body is exposed to higher temperatures, your blood vessels naturally expand (a process called vasodilation) to help cool the body.
This widening of blood vessels, while helpful for regulating body temperature, also causes fluid to leak into surrounding tissues, especially in gravity-affected areas like the feet and ankles.
Common Causes of Swollen Feet in Summer
1. Heat-Induced Water Retention
Your body retains more water in the summer to keep cool, especially in hot and humid regions like Houston. This retained fluid can settle in your lower extremities.
2. Prolonged Standing or Sitting
Whether you’re working long shifts or sitting on a summer flight, immobility can reduce circulation. Blood and fluid tend to pool in the feet, leading to swelling.
3. Lack of Hydration
Ironically, not drinking enough water can cause your body to hold onto fluids. Dehydration tricks the body into storing water, increasing puffiness in the feet.
4. Salt and Processed Foods
Barbecues, chips, and processed summer snacks are often high in sodium, which contributes to water retention and foot swelling.
5. Medical Conditions
Sometimes, swollen feet can signal underlying issues such as:
Venous insufficiency
Heart disease
Kidney or liver disorders
Lymphedema
Pregnancy-related edema
If your swelling is sudden, painful, or uneven (especially if only one foot swells), seek medical attention.
Who’s Most At Risk?
While anyone can experience summer foot swelling, it’s more common in:
Older adults
Pregnant women
Diabetics
People with high blood pressure or vascular issues
Even healthy, active individuals can suffer swollen feet in summer if they’re outdoors for extended periods or wearing the wrong footwear.
How to Reduce Swollen Feet in Summer
Here are practical, podiatrist-recommended strategies to beat the heat and the swelling:
1. Stay Hydrated
Drink plenty of water throughout the day to help flush out excess sodium and reduce fluid retention.
2. Limit Salt Intake
Avoid processed foods, salty snacks, and heavy sauces that can cause your body to hold water.
3. Wear Supportive Shoes
Ditch the flip-flops and choose sandals or shoes with good arch support and proper cushioning. Look for breathable materials to prevent overheating.
4. Elevate Your Feet
Whenever possible, prop your feet up above heart level to help fluids drain and improve circulation.
5. Move Regularly
If you sit or stand for long hours, take breaks to stretch, walk, or rotate your ankles. Small movements can make a big difference.
6. Compression Socks
Lightweight compression socks can help improve circulation and prevent fluids from pooling in the feet and ankles. These are especially helpful during travel or work shifts.
7. Cool Foot Soaks
A simple soak in cool (not ice-cold) water can relieve discomfort and reduce swelling. Add Epsom salts or peppermint oil for a relaxing bonus.
When to See a Podiatrist
While mild swelling during Houston’s hot summer months can be normal, persistent or painful swelling could be a sign of an underlying condition. Seek help from a podiatrist if:
Swelling is only in one foot or leg
You experience numbness, redness, or pain
You have a history of circulation or heart problems
Your swelling worsens despite home care
At DeNiel Foot and Ankle Center, we offer comprehensive care for all foot and ankle issues, including edema management, vascular screenings, and personalized treatment plans.
Summer Foot Swelling and Diabetics
For people with diabetes, swollen feet in summer can be more than just a discomfort—it can be dangerous. Swelling can hide open wounds or pressure points that may develop into ulcers. If you’re diabetic and experiencing swelling, make sure you’re performing daily foot checks and consult a foot specialist.
Tips for Preventing Swelling Before It Starts
Start your day with a brief foot massage or stretches
Wear shoes that fit well, especially if you’re active or outdoors
Avoid tight socks or straps that restrict circulation
Choose a low-sodium diet during hot months
Book a podiatrist appointment for any recurring issues
Swollen feet in summer may be common, but they shouldn’t be ignored. Whether it’s caused by heat, lifestyle, or an underlying health issue, proper care and prevention can make a huge difference in your comfort and health.
If you’re in the Houston area and dealing with persistent swelling, pain, or foot discomfort, schedule a consultation with DeNiel Foot and Ankle Center. Our Houston Podiatrist is here to help you stay active, comfortable, and pain-free—even in the Texas heat.
