Conversation: The conversation between human and AI assistant.
[|Human|] Two days ago a lump formed on the outer side of my shin, close but not directly on the bone.  It doesnt not hurt unless touched, or rubbed against. Sometimes a dull pain when going up and down stairs. At times it feels warm to the touch. It is very firm.
[|AI|]  Hello! Thank you for the query. This lump is most likely a varicose vein. Due to main veins insufficiency, small veins under the skin gets enlarged due to increased blood pressure in them. As the blood circulation is impeded in such varicose veins, there is a possibility of veins thrombosis. In such case, varicose vein gets hard and painful. I suggest you to consult a surgeon with this issue. Doppler's veins ultrasound should be done. Surgery might be necessary. Hope this will help. Regards.