Five Vascular Warning Signs You Should Not Ignore
Leg pain when walking, a swollen calf, a foot wound that will not heal and troublesome varicose veins can all warrant a vascular assessment. Sudden severe chest, back or abdominal pain is different: it may be an emergency and must not wait for a clinic appointment.
To close his September vascular awareness series, Dr Andrew Choong describes five patterns worth recognising. These symptoms do not prove a particular diagnosis. Knowing what to do next helps you seek the right care at the right time.
For sudden severe chest, back or abdominal pain, collapse, stroke symptoms or a suddenly cold, painful or weak limb, call 995 in Singapore or your local emergency number elsewhere. Do not wait for a WhatsApp reply or travel to Singapore for a planned consultation.
1. Leg Pain When Walking That Improves With Rest
Repeated aching, cramping or tightness in the calf, thigh or buttock during walking may be claudication. This can occur when peripheral arterial disease (PAD) limits blood flow to working muscles. The discomfort often settles when you stop, then returns when you walk again.
Similar symptoms can come from joints, nerves or muscles. An assessment helps distinguish these causes and considers smoking, diabetes, cholesterol, blood pressure and kidney disease. Stable walking symptoms usually allow a planned review. New pain at rest or a sudden change in the foot’s temperature, colour, sensation or strength needs more urgent attention.
Treatment is not automatically an operation. Risk-factor management, prescribed medicines and structured exercise are important. Angioplasty or stenting may be considered in selected patients after reviewing the symptoms, anatomy, alternatives and risks.
2. A Painful, Swollen Calf, Especially on One Side
A new swollen, painful or tender calf can be a sign of deep vein thrombosis (DVT), a clot in a deep vein. Other conditions can cause swelling too, and DVT cannot be confirmed or excluded from appearance alone.
Seek urgent medical assessment for a suspected DVT, rather than waiting for a routine appointment. Tell the clinician when symptoms began and about recent travel, surgery, reduced mobility, illness or previous clots. Clinical assessment and appropriate testing establish the diagnosis and guide DVT treatment.
New breathlessness, chest pain, coughing blood or fainting may indicate a pulmonary embolism. Seek emergency care immediately; call 995 in Singapore for these potentially life-threatening symptoms.
3. A Foot or Toe Wound That Is Not Healing
A persistent wound may involve more than the skin. Reduced arterial blood flow can limit healing, while pressure, infection and reduced sensation may also contribute. This is particularly important in people with diabetes or kidney disease.
Do not wait for a small wound to become painful or black before seeking help. Diabetic foot and wound assessment considers the circulation alongside infection and pressure on the foot. Fever, spreading redness, blackened tissue, rapidly worsening pain or feeling unwell needs urgent medical attention.
A dressing alone will not resolve every underlying problem. Treatment may combine wound care, pressure relief, infection management and, when needed, restoration of blood flow. The plan depends on the individual findings; no procedure guarantees wound healing.
4. Varicose Veins With Symptoms or Skin Changes
Varicose veins are not always cosmetic. Heaviness, aching, swelling, skin darkening, eczema or an ulcer can indicate clinically important venous disease. Chronic venous insufficiency can affect the skin around the lower leg and ankle.
A vascular review can check for reflux, where faulty vein valves allow blood to flow backwards. Duplex ultrasound helps guide treatment when appropriate. Depending on the findings, options may include measures to manage symptoms or a procedure such as radiofrequency or laser ablation.
Bleeding from a varicose vein needs immediate medical attention. Heavy or uncontrolled bleeding is an emergency: call 995 in Singapore. Do not dismiss an episode simply because it has stopped.
5. Sudden Severe Chest, Back or Abdominal Pain
Sudden severe or unusual pain in these areas can have several serious causes. Occasionally it signals an aortic emergency, such as dissection or a complication of an aneurysm. Pain may be described as tearing, but it does not have to feel that way to be dangerous.
Call emergency services immediately. A routine vascular booking is not the correct first step. If you have a known aneurysm, tell the emergency team. The aortic disease guide explains surveillance and treatment planning for people who are stable; it does not replace emergency assessment.
What to Bring to a Planned Vascular Review
Bring previous scan images and reports, a medication list, details of earlier procedures and a short history of the symptoms. Note what brings them on and how they affect walking or daily activities.
For non-emergency advice or a second opinion, contact Andrew Choong Vascular Surgery at Mount Elizabeth Novena Specialist Centre, Singapore. See how to prepare for your visit and watch the five vascular warning signs video.