Customer care

Book Your Test

* T & C
You will get a call within 12 Hrs from the time of Booking. *T&C – Free home sample collection is not available on specific tests. Pediatric home sample collection ( kids below 10 years age ) is available at specific cities only

Blood Clots: Causes, Symptoms, Treatment, and Diagnosis

 Blood clots are clumps in the blood that are formed by platelets.  These clots help in stopping excess blood flow in places there is a cut or an injury. However, blood clots should not be formed when blood is flowing through the body.  When clots are created inside the blood vessels or when it clots too much, there can be problems that warrant a health check and diagnostic tests.            

While clots formed inside the little veins close to the surface of the skin can be treated easily, the ones that manifest in the deeper, larger veins require in-depth treatment.  Most clots happen in the lower leg; if it happens in a deeper vein, it leads to a condition known as deep vein thrombosis.

DVT becomes complicated when pieces of the clot, called emboli, break away from the localized area (for instance, the lower leg) and move through the bloodstream to an artery.  If a blood clot blocks the blood flow to the lungs, it can cause a life-threatening condition known as pulmonary embolism.  If the clot blocks the coronary artery, it causes ‘heart attack’.

Symptoms of the blood clot

 Signs of blood clot in the lower leg

 The symptoms can be in the form of swelling, pain, soreness, bluish or pale discoloration in the lower leg.  If the clot is small, there can be a minor swelling in the calf without any pain. If the clot is big, the entire leg can be swollen with pain.

 Signs of blood clot in lungs

The symptoms of pulmonary embolism (blood clot in the lungs) are unexpected shortness of breath, rapid heart rate or palpitations, breathing problems, chest pain or coughing up blood.

Signs of blood clot in the heart

Squeezing pain in the chest or heaviness in the area are symptoms of blood clot in the heart. Shortness of breath and giddiness are other symptoms.

 Causes of blood clots

One of the leading causes of blood clots is prolonged inactivity. For instance, if sitting in car or airplane for long hours can decrease blood flow in the legs. The other causes include obesity, family history of blood clots, and pregnancy, and smoking, intake of medications for hormone replacement, oral contraceptives, and surgery. Being older than 65 years of age also poses a risk for the formation of blood clots.


Your doctor may prescribe medicine that can thin blood and decrease their likelihood to clot.  Two of the common blood thinners include warfarin and heparin.  Warfarin is taken orally and is used for long-term treatment for blood clotting.  Heparin is injected and is used to stem blood clots right away. Patients need to work with doctors on an ongoing basis to monitor the effects of these drugs so that the latter can alter the dosage accordingly.  A cardiologist may need to insert a stent to open a narrow vein or perform a balloon angioplasty. In critical situations, a drug is known as tissue plasminogen activator may be given to dissolve a potentially fatal blood clot to the brain or heart.

Diagnostic services for blood clots

The doctor will be able to diagnose blood clots based on the results of laboratory tests and patient history. Risk factors are also determined by knowing about environmental factors coming into play like a recent prolonged activity like air-travel and use of medications.

Diagnostic tests for blood clots are in the form of non-invasive ultrasounds.  In this scenario, sounds waves move through the tissue and reflect back the results. Through a computer, these sound waves are transformed into moving images that show clots and other abnormalities in the vein. Apart from ultrasounds, computed tomography (CT) scans can also give images of the blood vessels, where the results could be viewed three-dimensionally and in greater detail.  MRI or magnetic resonance imaging can also be used to detect blood clots. The doctor may also ask you to go for a blood test, as a part of the health check process

Do not hesitate to contact a diagnostic center for more information and lab tests related to blood clots.

Book Your Test

* T & C

You will get a call within 12 Hrs from the time of Booking. *T&C – Free home sample collection is not available on specific tests. Pediatric home sample collection ( kids below 10 years age ) is available at specific cities only

Patient Testimonials

“Finding the best place for a diagnostic test is as important as consulting the best doctor. The Apollo name was what guided me to Apollo Diagnostics and I am indeed glad that I came here. From attending us on time to sample collection, everything flowed so smoothly. I was particularly impressed by the hygiene. It was definitely a value for money experience. Thanks a lot Apollo Diagnostics…keep up the good work!”

Mrs. Ferha Jabeen, Old Bowenpally, Secunderabad

“I Have heard a lot of good things about Apollo Diagnostics from our family physician as well as from relatives and friends. So then next time I needed a diagnostic centre, I visited Apollo Diagnostics and I was really glad I did. For one, I didn’t have to wait. The technician was extremely good, and the place was really clean. It was certainly a value for money experience. Great job Apollo Diagnostics!”

Ms. T. Jaya, Nakkalagutta, Hanmakonda

“I must say Apollo Diagnostics places a great value on time and patient comfort! I am a fan of their home collection service which is not only on time and technically sound, but the hygiene and cordiality of the visiting technician is also commendable. Hats off! I’ll continue to recommend Apollo Diagnostics to my family and friends.”

Mr. B. Pochaiah, Mallikarjuna Nagar Colony, Old Bowenpally, Secunderabad

“I have always had a great experience with Apollo Diagnostics. The calls are unfailingly answered. The scheduled appointment is kept to the minute. The phlebotomist is well-trained in both technique and putting the patient at ease. Apollo Diagnostics undoubtedly delivers value for money. They will always be my top option for all the diagnostic needs of my family.”

Mr. Prasanta Kumar Jena, JP Nagar, Bengaluru

“I came to know about Apollo Diagnostics from my relatives and friends. So, when I required a check up to be done, I thought about trying their service once. From sticking to the appointed time to accuracy of technique, it was really a great experience overall. Hygiene of the technician and the centre as well, was also quite admirable. I certainly felt it delivers value for money service. From now on, I’ll always visit Apollo Diagnostics for all my checkups.”

Mr. Venkateshwar Rao, Hanmakonda

“I was looking for a good diagnostic centre to get some checkups done. I was confused as there are so many of them all over the city. Some of my friends recommended Apollo Diagnostics as the best one. I’ll always remain thankful to them. The technician at Apollo Diagnostics was not only punctual but his competency was certainly praiseworthy. I never felt any discomfort as he was so confident and compassionate. Great job Apollo Diagnostics!”

Mr. T Radhakishan Rao, Hanmakonda

“My experience with Apollo Diagnostics has been consistently good. Securing the appointment was very easy and the schedule was maintained to the dot. The behaviour of the technician was pleasant and he was well–versed with his job. The place was noticeably clean and I did not face any discomfort during the process. The reports were delivered as promised and surprisingly, the service was pretty affordable. I would recommend Apollo Diagnostics to my circle without any hesitation!”

Mr. Arif Ameer, JP Nagar, Bengaluru

“Apollo Diagnostics came highly recommended by my friends. I was particularly impressed by their cordiality, time management and process competence. Another must mention is the hygiene factor that is impeccable. Given the quality delivered, this is certainly a value for money experience. Thanks a lot Apollo Diagnostics…keep up the great work!”

Ms. A.Madhavi, Warangal

“Our family physician strictly instructed me to get the checkup done at Apollo Diagnostics. I am glad I respected his opinion. I was attended to as soon as I went in. The technician was a true expert at his job and made it a painless experience for me. I also observed that the centre was spotless and all the staff members were particular about maintaining hygiene. Apollo Diagnostics certainly delivers value for money. I’ll always recommend Apollo Diagnostics to my family and friends.”

Ms. Vimala, Hanmakonda

“My Apollo Diagnostics experience has thus far been truly amazing. Besides unfailingly maintaining the schedule – be it sample taking or report delivery, their sense of cleanliness is also tops. The technicians are well-trained and do their job with diligence and in a friendly manner that puts patients at ease at once. Apollo Diagnostics is setting a very high standard indeed! Now that’s what I call a fine job!”

Ms. G. Jyothi, Warangal

“My mother needed a blood test, but was unable to walk due to pain in her leg. A Phlebotomist from Apollo Diagnostics came home and collected the sample. I was informed, via SMS, that the report could be collected from any of the 3 centres in Dibrugarh, downloaded online or even delivered home for a nominal fee. Although the rates were reasonable, my mother also received a senior citizens discount too! This saved my time, money & energy. My aachhe din really seemed to have arrived! Thank you Apollo Diagnostics and hats off for displaying true professionalism.”

Mr. Alokk Kar Dowerah, Dibrugarh

“Whenever I need to have a blood sample collected from home, I ask for Vasu. He is punctual, courteous and so skilled I hardly feel any pain when he draws the sample. Plus, I truly appreciate how quickly the reports are delivered. Thanks Apollo!”

Mr. Sukumar, Film director, Sriram Nagar, Hyderabad