The doctor has explained who is most likely to be at risk as he shared warning signs to be aware ofRobert Rowlands Deputy editor, money and lifestyle, content hub and Neil Shaw
16:59, 15 Oct 2026Updated 17:00, 15 Oct 2026
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A cardiologist has shed light on the warning signs of blood clots, particularly for women. Women’s risk can fluctuate at various stages of life — from certain forms of hormonal contraception and pregnancy, to the postpartum period and menopause.
World Thrombosis Day this week was part of a campaign to shine a spotlight on how a woman’s blood clot risk can shift throughout her lifetime. It this week urged women to familiarise themselves with their own individual risk factors.
Dr Francesco Lo Monaco, preventive cardiologist at the National Longevity Clinic, stressed that understanding your personal health risks is a key element of taking a proactive stance on long-term well-being. He said: “Prevention starts with understanding your own risk rather than assuming that feeling well means everything is fine. Knowing your medical history, being aware of changes in your health and discussing concerns with a healthcare professional can help you make informed decisions about your health.”
The blood clot red flags you should never ignore
A deep vein thrombosis (DVT) develops when a clot forms in a deep vein, typically in the leg. Symptoms may include:
Skin that feels warm or appears red, blue or darker than usual.Swelling in one leg.Pain or tenderness in one leg, often in the calf or thigh.
A pulmonary embolism happens when a clot travels to the lungs and obstructs a blood vessel. Warning signs may include sudden breathlessness, chest pain that can intensify with breathing, or coughing up blood.
If you suspect a DVT, seek urgent medical attention. If you experience sudden shortness of breath, chest pain, cough up blood or collapse, dial 999 immediately.
A suspected pulmonary embolism is potentially life-threatening and demands urgent assessment. These warning signs can stem from other conditions as well, so they don’t necessarily indicate a blood clot. Nevertheless, they shouldn’t be dismissed.
When can a woman’s blood clot risk change?
The doctor issued the following advice for women to bear in mind when it comes to blood clots and their risk of having them.
Hormonal contraception
Some contraceptives that contain oestrogen, such as the combined contraceptive pill, patch, and vaginal ring, have been linked to a heightened risk of blood clots. While the overall risk remains relatively low for most users, it is advisable to consult a healthcare professional to assess individual risk factors when considering contraception options, reports Surrey Live.
Dr Francesco Lo Monaco
Pregnancy and after childbirth
Pregnancy increases the likelihood of blood clots due to bodily changes designed to minimise bleeding during childbirth. The risk is especially heightened following delivery, so expectant and new mothers should be aware of warning signs and consult a doctor if symptoms emerge.
Menopause and hormone replacement therapy
Certain types of hormone replacement therapy (HRT), especially oestrogen-containing tablets, may raise the risk of blood clots. The level of risk depends on the specific treatment and method of administration.
Women contemplating HRT should have a thorough discussion with their healthcare provider about their individual medical background and available options, rather than presuming all treatments pose identical risks.
Additional factors that can heighten clot risk include a history of blood clots, specific inherited clotting disorders, smoking, certain medical conditions, and extended periods of immobility.
How can women assess their risk of a blood clot?
Dr Lo Monaco emphasises that taking charge of one’s health involves being transparent about personal and family medical backgrounds and raising concerns when situations evolve. “Your health risks are not necessarily fixed throughout your life. Pregnancy, hormonal treatments, changes in mobility and other medical factors can all affect the advice that is right for you.
“Rather than making decisions based on general information alone, speak to a healthcare professional about your individual circumstances. That is particularly important if you have previously had a blood clot or have a family history of clotting problems.”
Women must not discontinue prescribed contraception or HRT without consulting a medical professional. A clinician can evaluate the advantages and disadvantages and explore appropriate alternatives where necessary.
Officials say that World Thrombosis Day serves as a reminder that raising awareness isn’t about fostering anxiety around blood clots. It’s about understanding the elements that influence risk, identifying the warning signals and understanding when to seek medical attention.