It Might Be a Circulation Issue

When the temperatures rise, it’s not just your energy bill that feels the pressure but your legs might too. If you've noticed your feet, ankles, or calves swelling more in the summer months, you're not alone. Heat can make underlying circulation problems worse, especially conditions like varicose veins or chronic venous insufficiency. While summer swelling may seem like a harmless nuisance, it could be your body’s way of telling you there’s more going on beneath the surface.

Let’s explore why this happens, what signs to watch for, and how a vascular specialist can help you manage symptoms and protect your vascular health.

Why Summer Heat Worsens Swelling

Our circulatory system works hard to push blood from the legs back up to the heart. In the summer, the body naturally expands its blood vessels in an effort to stay cool, a process called vasodilation. While this is a normal function, it can increase pressure in the veins of the legs. For people with weakened vein valves or poor circulation, that extra pressure can lead to pooling of blood, resulting in visible swelling and discomfort. 

Symptoms people notice in the warm summer months include: 

  • Heavier, achy legs by late afternoon
  • Swelling in the ankles, feet, or calves
  • Skin tightness or a “full” feeling
  • Increased appearance of spider or varicose veins
  • Throbbing or cramps in the legs, especially when standing

The heat doesn’t cause circulation issues, but it can magnify existing ones.

Is It Just the Heat, or Something More?

Occasional swelling on a hot day may not be a big deal. But persistent or worsening symptoms, particularly if they return every summer or show up alongside other signs like skin discoloration or leg ulcers, could point to a more serious issue like chronic venous insufficiency (CVI) or deep vein thrombosis (DVT). These conditions don’t go away on their own and early diagnosis can make a big difference in treatment outcomes.

So, when should you talk to a doctor?

  • If swelling is persistent or painful
  • If one leg is significantly more swollen than the other
  • If you have visible varicose veins
  • If you notice skin changes (darkening, dryness, flaking)
  • If swelling is accompanied by redness, warmth, or tenderness

How a Vascular Specialist Can Help

Vascular specialists are trained to diagnose and treat conditions related to poor circulation. After an evaluation, they may use tools like ultrasound to check for valve function and blood flow in your legs. Depending on your condition, they might recommend:

  • Lifestyle changes: Compression socks, leg elevation, and exercise
  • Minimally invasive procedures: Options like radiofrequency ablation, sclerotherapy, or microphlebectomy can close or remove damaged veins
  • Medication: To improve circulation or manage symptoms
  • Long-term monitoring: To catch any complications early

Most treatments are outpatient and have minimal downtime so you can get back to enjoying your summer faster.

What You Can Do Right Now

While you're waiting to see a specialist (or just trying to keep symptoms at bay), here are a few helpful tips:

  • Wear compression stockings especially if you’re standing or walking a lot or even traveling.
  • Elevate your legs when sitting or resting to help blood flow back toward your heart.
  • Stay cool and hydrated. Dehydration can make swelling worse.
  • Move regularly, even if it’s just a short walk or stretching every hour.
  • Avoid tight clothing around the thighs or waist.

Don’t Brush Off Summer Swelling

Swelling in the heat isn’t just an inconvenience, it might be your body’s signal that your veins are under stress. Ignoring it could allow symptoms to worsen over time. Whether you're dealing with discomfort, visible veins, or just want peace of mind, a vascular specialist can provide answers and options tailored to your needs.

Healthy circulation is key to staying active and comfortable,not just in summer, but year-round.

Dr. Shahin Assadnia with East Tennessee Vascular Center would love to discuss your symptoms with you and form a customized treatment plan to address your vein issues. He specializes in vascular medicine and wound care and taking new patients.

The Healthstar Physicians network offers primary care and specialty services across East Tennessee. Our medical team is part of your community and because of that we are Near You, For You.