Phlebitis describes veins that are inflamed, which are visibly red and painful. Phlebitis is also referred to as thrombophlebitis, superficial thrombophlebitis, or superficial venous thrombosis. 

1. What is Phlebitis and How is it Treated?
Unless you work in the medical field, you may not have heard of phlebitis. This
term refers to the inflammation of a vein. Veins can become inflamed when there
is a blood clot in the vein or the vein walls are damaged.
Below, we take a closer look at what phlebitis is, who is likely to develop it, and
how it can be treated.
What is Phlebitis?
Phlebitis describes veins that are inflamed, which are visibly red and painful.
Phlebitis is also referred to as thrombophlebitis, superficial thrombophlebitis, or
superficial venous thrombosis.
Phlebitis symptoms can impact both deep veins and superficial veins near the
skin’s surface. Most of the time, phlebitis occurs in the pelvis or legs when a blood
clot forms in the veins. Because blood clots can lead to dangerous health issues,
like embolisms, it’s important to recognize symptoms of phlebitis and seek
medical evaluation when needed. Phlebitis symptoms are:
 Swelling
 Pain
 Warmth or tenderness
 Reddened skin (not always experienced)

2. What Causes Phlebitis?
Phlebitis is an inflammatory process that causes a blood clot to form and block
the veins, usually in your legs. Blood clots can form when the flow of blood in the
veins slows or changes. Having another medical condition, like vein disease, puts
you at an increased risk for phlebitis. Other risk factors include:
 Smoking
 Taking estrogen or birth control pills
 Inactivity (usually sitting for extended periods of time)
 Family history of blood clots
 Pregnancy or giving birth in the past 6 months
 Being obese or overweight
 Fractures or traumatic injury to the pelvis or legs
Phlebitis in the superficial venous system is called superficial thrombophlebitis,
and when it affects a deep vein, it is referred to as deep vein thrombosis (DVT).
Understanding the difference between deep vein thrombosis and phlebitis is
important because DVT can cause life-threatening pulmonary embolism when a
clot travels and blocks blood flow to the lungs.

3. Deep Vein Thrombosis (DVT) vs. Superficial Thrombophlebitis
The main difference between deep vein thrombosis and superficial thrombophlebitis is
where the blood clot is located. As mentioned above, blood clots can form as a result of
vein disease. Vein disease occurs when the valves in your veins malfunction and are
unable to keep blood flowing from your legs back up to your heart. When your vein
valves cannot effectively pump blood back to the heart, blood begins to pool in your
legs, placing more pressure on the veins.
Blood collecting in your legs can cause varicose veins, which are bulging, twisted veins
near the surface of the skin. Blood flow through varicose veins is slowed down due to
increased pressure, and this often causes blood clots to form. These clots are called
superficial thrombophlebitis because they form close to the surface of the skin.
Sometimes, patients experience painful, hard lumps underneath the skin as a symptom
of superficial thrombophlebitis. This condition is usually painful and can be treated to
clear the blood clot and relieve the inflammation.
Superficial thrombophlebitis is rarely associated with life-threatening deep venous
disease. Many vein experts say that they have not found enough evidence to suggest
that phlebitis could be a risk factor for pulmonary embolism.
On the other hand, deep vein thrombosis (DVT) occurs when blood clots develop within
the deep venous system. When a deep vein in the leg is affected by DVT, your leg may
become swollen, painful, and tender to the touch. These symptoms occur most
commonly in the calf, but may occur anywhere in the leg up to the groin.
When deep vein thrombosis is left untreated, it can lead to a dangerous condition,
pulmonary embolism. . The blood clot can dislodge and travel through the circulatory
system to the lungs, blocking blood flow. A pulmonary embolism is life-threatening and
requires immediate medical treatment. However, for the best health outcomes, see a
doctor right away if you have a red, swollen, or tender vein in your legs.
If you notice any of these symptoms, along with other symptoms of vein disease like
varicose veins, the expert vein specialists at USA Vein Clinics can provide an accurate
diagnosis and personalized treatment recommendations. Our treatment options can
relieve your pain and get you back to your daily activities without a long recovery time.

4. Phlebitis Diagnosis and Treatment
If you have symptoms of phlebitis, your doctor will conduct a thorough physical
examination. However, a vascular ultrasound is needed to confirm the diagnosis
and determine which veins are being affected by the blood clot. Ultrasound
testing is crucial because, according to a 2021 study, 23% of patients with
phlebitis also had DVT.
They might perform additional tests such as doppler ultrasound or venography.
Doppler ultrasound allows your doctor to check the blood flow in your veins,
whereas venography uses x-rays to display the veins inside the legs.
Once diagnosed, your doctor will discuss phlebitis treatment. Your doctor may
recommend:
 Using compression socks
 Warm compresses
 Leg elevation when at rest
 Regular exercise to promote circulation and break up periods of inactivity
 Taking blood thinners
While these recommendations might help manage your pain and inflammation,
seeking treatment can address the underlying cause of the blood clots and may
prevent them from returning or developing into a more serious condition, like
DVT.

5. Treatment of Phlebitis
Phlebitis and varicose veins are often interrelated. According to the National
Center for Biotechnology Information, varicose veins are the most common factor
in up to 88% of superficial thrombophlebitis cases. If you have varicose veins,
treatment may help reduce your risks for superficial thrombophlebitis and DVT.
Blood clots occurring in superficial veins have a small chance of traveling to where
these veins meet a deeper vein. If this happens, the blood clot could develop into
DVT. Treating underlying vein disease can help prevent phlebitis and DVT.
Explore Your Options at USA Vein Clinics
At USA Vein Clinics, our doctors specialize in non-surgical procedures that can
treat your varicose veins and may keep painful or dangerous blood clots from
developing. Our treatments typically take less than 30 minutes, depending on the
number of veins affected, and you can return to your normal routine after only a
short recovery time. Your minimally invasive treatment options may include:
 Endovenous Laser Therapy (EVLT): Often considered the “gold standard”
for treating vein disease, this procedure uses laser energy to heat and close
the diseased veins. This is one of the quickest treatments available, taking
around 15 minutes and allowing you to resume daily activities
immediately.
 VenaSeal™: The latest technology for vein treatment, the VenaSeal™
procedure uses medical adhesive to provide immediate vein closure with
minimal pain and discomfort. Following the procedure, you’ll only need a
band-aid over the catheter insertion site.
To explore our full range of vein treatment options or see if treatment is covered
by insurance, schedule an appointment online or give us a call at 888.768.3467.
Our dedicated team is looking forward to working with you.