Conversation: The conversation between human and AI assistant.
[|Human|] occasional cramps in right calf for months, now swelling in right calf during day.goes down at night .some pain in back of calf nearly up to knee.had L4/5 disc surgery three years ago.too much time standing hurts back. I always had low blood p. and slow pulse.male 57 years old.no known heart or blood problems.
[|AI|]  Hi, Yes, it may be deep vein thrombosis or so-called DVT, although this is not very likely. I mean that clot is formed inside the big leg vessel. So you need to do Doppler ultrasound to rule this.  Vein thrombosis which is manifested with unilateral swelling of the leg, pain in calf and divinity of the skin. Some conditions such as pregnancy, obesity and recent surgery may increase the risk of it. This may be serious if the blood clot travels to the heart and lungs, so it should be ruled out as soon as possible and then appropriate treatment can be started.  In most cases, it includes strict resting heparin infusions and aspirin. More invasive procedures are rarely required. Hope I have answered your query. Let me know if I can assist you further.