Hi my friend slapped me in the back of my calf where i usually have a visible blue large vein(possibly varicose vein) and it burst when he slapped me, it swelled to the size of a golf ball- now size of quarter and is hard,tight,painful.emergency ?

NO: Will probably resolve on its own, warm packs may help with resolution. Surgical excision can speed healing and comfort

Bleeding vein.: It seems that the vein under your skin bled from the trauma of the slap. This resulted in the hard area. This is not an emergency. The treatment is local care with ice for the first 48 hours then wet heat after. The ice controls the bleeding and the wet heat will help the body to reabsorb the blood. This should heal over about 2 weeks.

Vein: This sounds like a vein rupture from the localized trauma, and should resolve within a few days' time. Use of Arnica gel over the area may aid in the healing process. If you do have varicose veins, I would recommend an evaluation of the venous duplex ultrasound to determine if more aggressive therapy would be warranted.