If you have heavy swelling and pain especially in regions such as calf and behind knee region, it might be Thrombophilia. It is a condition which leads to blood clots in the body. We recommend you to visit a specialist in the field of haematology which is the study of treatment of the blood. Dr Kannan Subramanian, the best haematologist in Pune has completed his super speciality from Christian Medical College Vellore and has treated several thousands of patients in a span of 20 years. For a better description of different types of treatments, we provide and to book an appointment kindly visit our website http://www.drkannansubramanian.com.