As summer heat sets in across Buffalo and Western New York, many residents notice an uncomfortable change: their legs start to swell. While it may seem like a harmless side effect of warmer temperatures, **persistent leg swelling — especially in the calves, ankles, or feet — can be a sign of vascular issues.** For those with underlying venous disease, the summer heat can worsen symptoms and increase the risk of complications.

At Great Lakes Medical Imaging (GLMI), we help patients uncover the root causes of leg swelling through non-invasive, advanced vascular imaging. If you’re experiencing recurring swelling or heaviness in your legs during hot weather, it may be time to get checked for **varicose veins, venous insufficiency, or other circulatory problems.**

Why Does Summer Heat Cause More Leg Swelling?

Heat causes blood vessels to dilate (widen), which increases blood flow to the skin in an effort to cool the body. For people with healthy veins, this adjustment is typically well-tolerated. But if your **veins are already struggling to circulate blood efficiently** — as in the case of venous insufficiency — blood can begin to pool in the lower extremities. This leads to swelling, discomfort, and visible signs like bulging or twisted veins.

Key contributors to summer-related leg swelling include:

• Vasodilation: Blood vessels expand to regulate body temperature, increasing pressure in the veins.
• Venous reflux: In damaged veins, valves may not close properly, allowing blood to flow backward and pool in the legs.
• Dehydration: Common in summer, dehydration causes fluid retention and worsens swelling.
• Prolonged standing or sitting: Vacation travel, outdoor events, and long periods of standing can worsen swelling symptoms.

All of these factors are exacerbated during the summer months, making vascular imaging an important diagnostic tool when symptoms persist or escalate.

What Are the Signs of Underlying Vascular Issues?

Occasional swelling is normal after a long day or extended physical activity, but **chronic or recurring swelling is a warning sign** that should not be ignored. You may be dealing with a vascular condition if you experience:

• Heavy, aching, or tired legs — especially at the end of the day
• Swelling that worsens in the afternoon or after standing
• Visible varicose veins or spider veins
• Skin discoloration around the ankles or calves
• Itching or burning sensation over swollen veins
• Cramping or throbbing in the legs

These symptoms may point to **chronic venous insufficiency (CVI)**, a condition in which the veins in your legs have trouble sending blood back up to the heart. Without treatment, CVI can progress and lead to ulcers, infections, and long-term mobility issues.

How Imaging Can Help Diagnose the Cause of Leg Swelling

At GLMI, we use non-invasive vascular imaging to identify the root cause of leg swelling and determine whether it’s related to venous insufficiency or another circulatory condition. Two of the most effective tools we use include:

Venous Ultrasound

This painless, radiation-free scan uses sound waves to create images of blood flow in the veins. It allows our radiologists to check for blockages, clots, or valve malfunctions that may be causing blood to pool in your legs.

CT Venography

When more detail is needed, a low-dose CT scan may be used to provide a clearer view of the veins and surrounding tissues. This is particularly helpful in more complex cases or when other risk factors are present.

Common Diagnoses Related to Leg Swelling

Our imaging services can help uncover a wide range of vascular and circulatory conditions, including:

• Varicose veins: Enlarged veins caused by valve dysfunction
• Chronic venous insufficiency: Long-term impairment of blood flow in leg veins
• Deep vein thrombosis (DVT): A serious condition involving blood clots in the deep veins
• Lymphedema: Swelling caused by lymphatic system blockages
• Peripheral artery disease (PAD): Poor circulation caused by arterial narrowing

Early diagnosis is key to preventing complications, especially in hot weather when symptoms are more pronounced.

Treatment Options and Next Steps

After imaging, your care team may recommend lifestyle adjustments, compression therapy, or referral to a vascular specialist for minimally invasive treatments like sclerotherapy or vein ablation. Imaging is essential to guide these decisions and monitor progress over time.

Why Buffalo and Western NY Residents Trust GLMI

At GLMI, we are committed to providing accurate, compassionate, and advanced diagnostic imaging for patients across Buffalo and Western New York. Our vascular imaging services are designed to deliver fast results with the clarity your healthcare provider needs to take the right next step in your care. We offer:

• Fellowship-trained radiologists with vascular experience
• Convenient locations throughout Buffalo and WNY
• Flexible scheduling, fast report turnaround, and personalized service

Don't Let Summer Swelling Go Unchecked

If you're experiencing swelling, aching, or heaviness in your legs this summer, don’t dismiss it. It could be a sign of something more serious. Schedule your vascular imaging appointment today at GLMI and take the first step toward lasting relief.

Medical Disclaimer

This article is for general informational purposes only and is not a substitute for professional medical advice. Always consult with a qualified healthcare provider regarding any medical conditions or concerns you may have.