Tingling in the Legs Possibilities & What it Could Be

Tingling Sensation in the Legs and Feet: What Could it Be?

A tingling sensation in the legs or feet is something almost everyone experiences at some point. Maybe your leg “fell asleep” after sitting cross-legged at your desk, or you noticed a persistent prickling feeling after a long flight. Usually, it’s temporary and harmless. But what if the tingling doesn’t go away? Persistent numbness or tingling in the arms or legs can signal underlying health issues that shouldn’t be ignored.

At Arizona Vein and Laser Institute, we see patients from across Arizona who come in specifically because of tingling in the legs. Understanding the possible causes can help you know when to seek medical attention. Below are some of the common causes of persistent tingling in the legs and feet.

Poor Circulation and Vascular Issues

One of the most overlooked causes of tingling in the legs is poor blood flow. Conditions like venous insufficiency or peripheral arterial disease (PAD) can reduce circulation, leaving your legs feeling numb, tingly, or even painful. If you notice visible varicose veins, swelling, or a heavy sensation in your legs, it could be related to vascular problems.

Nerve Compression or Sciatica

Ever sit awkwardly and feel that sharp pins-and-needles tingle? That’s a temporary nerve compression. But sometimes, nerves, like the sciatic nerve, get pinched or irritated in ways that aren’t going away with a little stretching. This can lead to ongoing tingling, numbness, or sharp, shooting pain down your leg. Herniated discs, spinal stenosis, or just long hours hunched at a desk can trigger this.

Diabetic Neuropathy

Diabetes can quietly damage nerves in your legs and feet over time. Known as diabetic neuropathy, it often starts as tingling or numbness and can progress to burning sensations or loss of feeling. Keeping blood sugar levels in check and undergoing regular monitoring can help catch this condition early.

Vitamin Deficiencies

Your nerves need certain vitamins, especially B12, to function properly. A deficiency can cause that tingly, “falling asleep” sensation to stick around longer than it should. If you’re not eating enough B12-rich foods or your body isn’t absorbing nutrients well, this could be a contributing factor.

Dehydration and Electrolyte Imbalance

It might sound simple, but dehydration and low levels of key electrolytes like potassium, magnesium, or calcium can make your nerves misfire, leading to tingling in the legs and feet. If you’ve been sweating heavily, skipping water breaks, or following a restrictive diet, your body might just be asking for a little hydration and mineral balance.

Stress and Anxiety

Yes, stress can literally make your legs tingle. Adrenaline and heightened nerve sensitivity during anxiety can produce weird sensations, including tingling in your arms and legs. It’s another reminder that our minds and bodies are tightly connected, and sometimes our nerves are just overreacting.

Less Common Causes

Other medical conditions, like thyroid disorders, multiple sclerosis, or even some medications, can trigger tingling in the legs. While these are less common, persistent or unusual symptoms should never be ignored.

When to Seek Medical Attention

Occasional tingling from sitting too long is harmless. But you should seek a professional evaluation if you notice:

Tingling that persists or worsens over time
Accompanying pain, swelling, or weakness
Visible varicose veins or skin changes
Tingling after minor injuries
Sudden numbness in one leg

Diagnosis and Treatment Options

At Arizona Vein and Laser Institute, we utilize advanced diagnostic tools, such as vascular ultrasound, to assess circulation and detect venous or arterial issues. Treatments may include EVLT, sclerotherapy, or phlebectomy for varicose veins, depending on the underlying cause. For nerve-related tingling, a referral to a specialist may be recommended.

Take Control of Your Health

Tingling in the legs and feet isn’t something to ignore, especially if it’s persistent. Understanding the underlying causes is the first step toward getting relief.

If you live in Arizona and are experiencing a tingling sensation in your legs or feet, the team at Arizona Vein and Laser Institute can help identify the root cause and create a treatment plan. Schedule a consultation today.

*Last Updated on 10/16/2025