Deep vein thrombosis is a blood clot in one or more than one deeper body vein, especially the ones found in the legs. These can lead to swelling or leg pain. However, in some people, DVT might not produce any symptoms. You may get deep vein thrombosis if you have a certain medical condition, impacting how the blood clots in your body. You may also get a blood clot if you do not move your legs for a long time. Let us address some of the telltale signs of deep vein thrombosis.

1. Leg swelling
A prevalent symptom of DVT is leg swelling. This swelling may occur in the foot, ankle, or leg. In most cases, the swelling is only on one side of the legs. This symptom may often be ignored and undermined for something as ordinary as an insect bite. However, if it appears with other signs mentioned below, it may indicate deep vein thrombosis. 

2. Leg pain
Another telltale symptom of deep vein thrombosis is leg pain. Like leg swelling, leg pain usually affects just one leg and begins at the calf. In the beginning, the pain may feel more like tenderness, soreness, or achiness, instead of more stabbing pain. However, this pain may aggravate when you stand or walk for an extended period. Usually, this pain is mistaken as that of a pulled muscle or any other muscle injury. However, you can identify it as a sign of DVT if the pain worsens after rest instead of getting better. 

3. Cramping, sore veins, or enlarged veins
Usually, you may experience leg swelling with visibly swollen veins. These are often painful and hard to touch. In addition to the swelling, DVT might also produce painful and sharp cramps in the legs. These mostly begin in the legs and then spread across the rest of the body.

4. Skin warmth
Most of the DVT signs may appear because of the obstructed blood flow. One such sign is skin warmth. It occurs because the blood is unable to circulate normally. In this case, the blood backs up and progressively fills in the outer veins that warm the area. This might make the skin in the area of the blood clot feel warmer in touch. This warmth is curtailed to the area over the vein and is noticeably warmer than the other surrounding area with normal temperatures. At times, the whole calf might feel warmer than the other one.  

5. Color changes
Lastly, DVT might also lead to skin color changes over the affected vein and its area. It may appear red, and there might be some swelling or pain accompanied by it. The discoloration may vary from bluish to dark-hued. It is predominantly because of the obstructed blood flow in that area. Just like the other listed symptoms, the color changes, too, persist instead of getting better over time.