blood clot

Understanding Blood Clots | 4 min read

Have you ever experienced an injury such as a paper cut or accidentally nicked yourself while shaving? In such moments, a blood clot comes to the rescue, swiftly halting the bleeding. Typically, once its role is fulfilled, the clot dissolves. However, there are instances when complications arise.

When blood clots fail to disintegrate, they pose a threat and can lead to severe medical conditions. They can form in blood vessels throughout the body, with a higher likelihood of affecting the legs, particularly after extended periods of sitting.

Arterial clots in the vessels responsible for transporting oxygen from the heart to all cells can have severe consequences. They may impede oxygen flow to vital organs such as the heart, lungs, or brain, resulting in life-threatening emergencies like heart attacks or strokes.

Alternatively, clots can form in the veins that return blood to the heart. Though symptoms in such cases tend to manifest more gradually, they still signal potential trouble.

Recognising the warning signs increases the likelihood of prompt medical assistance, significantly reducing the risk of entering a dangerous situation. It is crucial to acknowledge that, in some instances, clots may develop with minimal or no discernible symptoms.

What are blood clots?

Blood clots are solid formations that occur when liquid blood becomes solid.

A thrombus forms inside veins or arteries, while an embolus is a thrombus that breaks loose and travels to another part of the body. Depending on the affected area, clots can partially or entirely block blood vessels, leading to ischemia or fluid buildup.

What causes blood clots?

Various factors contribute to blood clot formation, including:

  • Prolonged immobility (bed rest, long flights, or car rides).
  • Pregnancy and post-pregnancy.
  • Hormonal factors (birth control pills, oestrogen use in smokers).
  • Surgery, injuries, or long-term use of intravenous catheters
  • Conditions such as cancer, obesity, and liver or kidney diseases
  • Inherited factors like Factor V Leiden mutation, Prothrombin G20210A mutation, etc.

How does injury cause a blood clot?

When a blood vessel is damaged due to broken bones, blunt force trauma, severe bruises, or significant muscle injuries, the blood around the vessel can become sticky and form a clot. These clots do not necessarily show up immediately but may occur several days or weeks later.

Blood clots after injury are also possible; research shows that seemingly minor injuries cause about 1 in 13 blood clots. This indicates the importance of seeking medical treatment after an injury and following care instructions to ensure a full recovery.

Signs and symptoms indicating the presence of a blood clot; the four signs of a blood clot

  • Swelling
  • Pain
  • Tenderness
  • Redness of the skin

A deeper dive in how to identify them

Blood clot symptoms may resemble muscle strains, but specific signs indicate a potential issue. Understand the symptoms based on the affected area:

  • Arms or legs: Swelling, discolouration, warmth, pain, cramping, or swollen, painful veins.
  • Heart: Severe chest and arm pain, sweating, and difficulty breathing.
  • Lungs: Shortness of breath, chest pain, coughing, sweating, and dizziness.
  • Brain: Vision or speech problems, seizures, weakness, confusion, and severe headaches.
  • Abdomen: Pain, vomiting, diarrhoea, and bloating.
  • Kidneys: Pain, blood in urine, fever, nausea, and high blood pressure.

When to see a doctor?

Prompt medical attention is crucial if you experience symptoms associated with blood clots. Seek help for a proper diagnosis and tailored treatment plan.

During your medical consultation, your healthcare provider is likely to inquire about the following:

  • Have you recently engaged in limited physical activity, such as prolonged periods of sitting or lying down?
  • Are your symptoms persistent, or do they exhibit a recurrence pattern?
  • To what degree do you experience the severity of your symptoms?
  • Have you identified any factors that alleviate your symptoms?
  • Have you observed any triggers or circumstances that exacerbate your symptoms?

Treatment and Home Management

Effective treatment involves various approaches:

Anticoagulant Medications: These “blood thinners” reduce clot formation and growth.

Compression Stockings: Aid in preventing post-thrombotic syndrome by improving blood flow.

Thrombolytics: Dissolve blood clots, typically for large or persistent clots.

Surgical Thrombectomy: Removal of large or damaging clots through surgery.

Vena Cava Filters: Inserted to prevent clots from reaching the lungs.

Prevention and Home Management Tips

Preventing blood clots involves lifestyle choices and early detection:

  • Regular checkups for those at genetic risk.
  • Lifestyle changes: loose clothing, compression stockings, quitting smoking.
  • Healthy habits: staying hydrated, low salt intake, regular exercise, maintaining a healthy weight.
  • Changing positions frequently on long journeys, avoiding leg crossing, and elevating legs above the heart when lying down.


Complications of Blood Clots

Complications include:

Pulmonary Embolism: Blockage in lung tissue, potentially leading to heart failure.e

Cerebral Embolism and Stroke: Blockage of vessels supplying blood to the brain, causing an ischemic stroke.

Renal Vein Thrombosis: Blood clot in the renal vein, potentially leading to acute renal failure.

Understanding blood clots is vital for timely intervention and effective management. Incorporate preventive measures into your lifestyle, recognise symptoms, and prioritise regular checkups to ensure your well-being. Early diagnosis and treatment can help prevent further complications and improve a person’s prognosis.


Subscribe to our newsletter

Join our mailing list to receive the latest news and articles, competition announcements, and webinar dates.

Subscription successful.

Share this article
Share on facebook
Share on twitter
Share on reddit
Share on linkedin

Schedule an Appointment

Intercare medical centres focus on routine, chronic and walk-in care as well as on patient wellness.

More on Medical

Yellow Fever Symptoms

Yellow fever

Yellow fever is a viral illness caused by the bite...