Diagnostics·Diagnostics
Explore the Ruqelo ecosystem
AI clinical productivity tools for healthcare professionals.
Ruqelo ClinicalPatient-friendly health education and guidance.
Premium Arabic speaking practice with roleplay, audio, and Companion.
Ruqelo ArabicInformed by recognized medical guidance
An ankle ultrasound is a safe, painless scan that uses sound waves to create pictures of the veins in your lower leg. It is often used to check for a deep vein thrombosis (DVT) — a blood clot in a deep vein, usually in the leg. The scan helps doctors see if blood is flowing normally or if a clot is blocking the vein.
Key facts
DVT is fairly common, affecting about 1 in 1,000 people each year. Ankle or leg ultrasounds are one of the most common ways doctors look for DVT.
DVT can affect anyone, but it is more common in people over 60, those who have had surgery or a long hospital stay, people who are inactive for long periods (like long flights), pregnant women, and people with certain medical conditions like cancer or clotting disorders.
To diagnose DVT, your doctor will first ask about your symptoms and risk factors. They will examine your leg for swelling, warmth, and tenderness. If they suspect DVT, they will usually order an ultrasound scan of the leg, often starting at the ankle.
During an ankle ultrasound, you will lie on an exam table. The sonographer (the person doing the scan) will apply a clear gel to your leg. They will move a small handheld device (called a transducer) gently over your ankle and up your leg. You may be asked to hold your breath or change position briefly. There is no pain, just mild pressure. The scan is safe and does not use radiation.
If an ankle ultrasound finds a DVT, treatment aims to keep the clot from growing and to prevent it from traveling to your lungs. Treatment usually involves medication and sometimes other measures. It is important to follow your doctor's advice carefully.
After a DVT, most people can return to normal activities gradually. You may need to take blood-thinning medication for several months. It is important to take it exactly as prescribed. Wear compression stockings if recommended, and keep your leg elevated when sitting for long periods.
There are no special diets required for DVT, but eating a balanced diet rich in fruits, vegetables, and whole grains can support overall health. Staying hydrated helps keep blood from getting too thick. If you take blood thinners, ask your doctor about how much vitamin K (found in green leafy vegetables) is safe for you, as it can affect how some blood thinners work.
You can lower your risk of DVT by staying active, avoiding long periods of sitting or lying still, maintaining a healthy weight, and not smoking. During long trips, move your legs frequently, drink water, and do simple exercises like ankle pumps. After surgery or during a hospital stay, your care team will take steps to prevent clots, such as giving blood thinners and compression devices.
Routine screening for DVT is not recommended for the general public. If you are at high risk (for example, after major surgery or a previous clot), your doctor may recommend preventive measures like blood thinners or compression stockings.
With proper treatment, most DVTs improve within days to weeks, and the risk of complications is low. Recovery can take several months, but the majority of people experience no long-term problems. Staying active, taking medication as prescribed, and attending follow-up appointments greatly improve your outlook.
External links open third-party websites. Ruqelo Health is not responsible for external content. Listing an organisation does not imply endorsement.
Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
This article is educational and is prepared with reference to recognized health information and clinical guidance sources where available. Specific source links may vary by topic.
Last updated: July 8, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.
Doctors usually prescribe blood-thinning medication (anticoagulants) to prevent the clot from growing and to reduce the risk of new clots. Treatment often starts with injections or pills, and can last at least 3 to 6 months. Your doctor will decide the right type and duration for you. It is important to attend follow-up appointments and have regular blood tests if needed.
Surgery is rarely needed for DVT. In very severe cases, a doctor may recommend a procedure to remove the clot (thrombectomy) or to place a filter in a large vein to catch clots before they reach the lungs (vena cava filter). These options are only considered when other treatments cannot be used or have failed.
A DVT diagnosis can be frightening and may cause anxiety about future clots. It is normal to feel worried. If you feel overwhelmed, talk to your doctor or a counsellor. Support from family and friends can also help. Remember that treatment is very effective, and most people recover fully.