# What are the symptoms of Deep Vein Thrombosis? **URL:** \ **Category:** Factual Questions\ **Created:** [March 2, 2001, 2:42am UTC](https://boards.straightdope.com/t/what-are-the-symptoms-of-deep-vein-thrombosis/56455 "2001-03-02T02:42:06Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![McMurphy](https://avatars.discourse-cdn.com/v4/letter/m/e19adc/32.png) [@McMurphy](https://boards.straightdope.com/u/McMurphy)\ **Post date:** [March 2, 2001, 2:42am UTC](https://boards.straightdope.com/t/what-are-the-symptoms-of-deep-vein-thrombosis/56455/1 "2001-03-02T02:42:06Z")
Does anyone know? Search engines have proven to be most unhelpful. Thanks. ---
**Author:** ![barbitu8](https://avatars.discourse-cdn.com/v4/letter/b/839c29/32.png) [@barbitu8](https://boards.straightdope.com/u/barbitu8)\ **Post date:** [March 2, 2001, 2:51am UTC](https://boards.straightdope.com/t/what-are-the-symptoms-of-deep-vein-thrombosis/56455/2 "2001-03-02T02:51:44Z")
[http://www.merck.com/pubs/mmanual/section16/chapter212/212g.htm](http://www.merck.com/pubs/mmanual/section16/chapter212/212g.htm) Thrombosis may affect superficial veins (superficial thrombophlebitis) or deep veins (deep vein thrombosis). Prolonged venous thrombosis may lead to chronic venous insufficiency, in which there is edema, pain, stasis pigmentation, stasis dermatitis, and stasis ulceration. Thrombosis is virtually always accompanied by phlebitis, thus the terms thrombosis and thrombophlebitis are used interchangeably. Thrombosis may occur on the basis of coagulation abnormalities that may be familial (see Ch. 132) or related to an underlying malignancy. ---
**Author:** ![Bob\_Scene](https://avatars.discourse-cdn.com/v4/letter/b/e19adc/32.png) [@Bob\_Scene](https://boards.straightdope.com/u/Bob_Scene)\ **Post date:** [March 2, 2001, 2:53am UTC](https://boards.straightdope.com/t/what-are-the-symptoms-of-deep-vein-thrombosis/56455/3 "2001-03-02T02:53:39Z")
Which search engines? If you type **symptoms deep vein thrombosis** into Google you get a billion zillion pages with titles like “Symptoms of deep vein thrombosis” and such. Here’s what one of them said: > [@](#): > > Symptoms include swelling and tenderness of the calf or thigh, and possibly warmth. Only 23-50% of patients experience symptoms, so it’s often “silent.” Some individuals and families have underlying clotting tendencies that can be tested for. ---
**Author:** ![Arjuna34](https://avatars.discourse-cdn.com/v4/letter/a/eb8c5e/32.png) [@Arjuna34](https://boards.straightdope.com/u/Arjuna34)\ **Post date:** [March 2, 2001, 2:55am UTC](https://boards.straightdope.com/t/what-are-the-symptoms-of-deep-vein-thrombosis/56455/4 "2001-03-02T02:55:05Z")
Um, you should try the [Merck Manual search](http://www.merck.com/pubs/mmanual/) 🙂 This is from the section on [Venous Thrombosis](http://www.merck.com/pubs/mmanual/section16/chapter212/212g.htm): > [@](#): > > Deep vein thrombosis (DVT) may be asymptomatic or may manifest over the involved area as > combinations of tenderness, pain, edema, warmth, skin discoloration, and prominent superficial > veins. DVT involving the popliteal, femoral, and iliac segments may be tender, with a hard cord > palpable over the involved vein in the femoral triangle in the groin, medial thigh, or popliteal space. > With iliofemoral venous thrombosis, dilated superficial collateral veins usually appear over the leg, > thigh, and hip areas and lower abdomen. > > ``` > Because at least three main veins drain the lower leg, thrombosis in one does not obstruct venous > return, and there is no swelling, cyanosis of the skin, or dilated superficial vein. The patient > complains of soreness or of pain on standing and walking that is usually relieved by rest with the > leg elevated. On examination, deep calf tenderness can be elicited, but the pain of DVT is often > difficult to differentiate from muscle pain. Pain from muscular causes will be absent or minimal on > dorsiflexion of the ankle with the knee flexed but maximal on dorsiflexion of the ankle with the > knee extended or during straight-leg raising (Homans' sign); thus, this test is unreliable for DVT. > Loss of peripheral arterial pulses occasionally accompanies massive DVT, but venous thrombosis > can also be secondary to acute arterial occlusion. > > ``` If that’s more technical than you wanted, try the [Merk Manual Home Edition](http://www.merckhomeedition.com/home.html). Here’s the section on [Venous and Lymphatic Disorders](http://www.merck.com/pubs/mmanual_home/sec3/30.htm), and on that page are these symptoms: > [@](#): > > About half the people with deep vein thrombosis have no symptoms at all. In these people, chest > pain caused by pulmonary embolism may be the first indication that something is wrong. When > deep vein thrombosis causes substantial inflammation and blood flow obstruction, the calf swells > and may be painful, tender to the touch, and warm. The ankle, foot, or thigh may also swell, > depending on which veins are involved. > > ``` > Some thrombi heal by being converted to scar tissue, which may damage the valves in the veins. > The resulting accumulation of fluid (edema) can make the ankle swell. The edema can extend up > the leg and even affect the thigh, if the obstruction is high enough in the vein. Edema is worse > toward the end of the day because of the effect of gravity when standing or sitting. Overnight the > edema subsides because the veins empty well when the legs are horizontal. > > A late symptom of deep vein thrombosis is brown skin discoloration, usually above the ankle. The > discoloration is from red blood cells that escape from distended veins into the skin. The discolored > skin is vulnerable, and even a minor injury such as a scratch or bump can break it open, resulting > in an ulcer. > > ``` Arjuna34 ---
**Author:** ![Arjuna34](https://avatars.discourse-cdn.com/v4/letter/a/eb8c5e/32.png) [@Arjuna34](https://boards.straightdope.com/u/Arjuna34)\ **Post date:** [March 2, 2001, 2:57am UTC](https://boards.straightdope.com/t/what-are-the-symptoms-of-deep-vein-thrombosis/56455/5 "2001-03-02T02:57:22Z")
Ack- sorry for the screwed up formatting in that last post! Arjuna34 ---
**Author:** ![cheezit](https://avatars.discourse-cdn.com/v4/letter/c/c57346/32.png) [@cheezit](https://boards.straightdope.com/u/cheezit)\ **Post date:** [March 2, 2001, 3:20am UTC](https://boards.straightdope.com/t/what-are-the-symptoms-of-deep-vein-thrombosis/56455/6 "2001-03-02T03:20:35Z")
My left calf swelled up to about the size of my upper leg. And it was painful to walk, mostly behind the knee. I went to the doctor to see what was wrong. He sent me to the hospital for a couple of tests which included injecting dye into my vein and xraying it. As soon as they confirmed that it was in fact a deep vein “blood clot”, they wouldn’t even let me stand up long enough to get in a wheel chair. They admitted me to the hospital right then and there and started an IV of Coumedin (sp?). (blood thinner medicine). I was in the hospital for 1 week. That was 10 or 11 years ago. Since that time, I have had no major problems, although at times my leg still swells up a little sometimes. I have to take an aspirin each day now, but when I was first out of the hospital, I was on the Coumadin in pill form for about six months. As a side note, when I was in the hospital, they did all kinds of different tests trying to find out the cause. They never did, but the doctor did say that smoking was one of the causes. (which I did at the time). The biggest danger is a clot breaking loose and getting to your heart, lung or brain. If it does, it’s pretty much curtains. So a word to the wise, if you even suspect that you may have one, get to a doctor immediately. ---
**Author:** ![edwino](https://avatars.discourse-cdn.com/v4/letter/e/35a633/32.png) [@edwino](https://boards.straightdope.com/u/edwino)\ **Post date:** [March 2, 2001, 3:35am UTC](https://boards.straightdope.com/t/what-are-the-symptoms-of-deep-vein-thrombosis/56455/7 "2001-03-02T03:35:34Z")
Two of the other things that we were taught to look for (besides warmth, swelling, and pain) : livor reticularis : this is a dilation of the cutaneous veins with an obstruction of the deep veins. The skin also becomes quite mottled. palpable cords : sometimes, with a big enough thrombosis, you can feel it with deep palpation. It feels like a tough cord under the skin. ---
**Author:** ![Yeah](https://avatars.discourse-cdn.com/v4/letter/y/dbc845/32.png) [@Yeah](https://boards.straightdope.com/u/Yeah)\ **Post date:** [March 3, 2001, 3:28am UTC](https://boards.straightdope.com/t/what-are-the-symptoms-of-deep-vein-thrombosis/56455/8 "2001-03-03T03:28:08Z")
“What?” – Richard M. Nixon" – Thomas Pynchon Yes, he too was hospitalized with DVT (at Long Beach Memorial Hospital). It is important to understand that deep vein thrombosis (DVT) which can make your leg swell up and hurt is a medical emergency because the clot can break up and a chunk can land in your lung and kill you. Chronic venous insufficiency can also make your leg swell up and hurt but it is not an emergency. It is a chronic or recurrent problem due to insufficient “drainage” of blood from the leg back to the heart.