Hi, I was woundering what injurys occurred if you didn't warm up properly before dancing?

Ouch. A number of things. A common injury would be a hamstring pull. Very painful and takes a long time to heal. Since this answer would be very lengthy, feel free to email me if you wish. But please do warm up before dance or most exercise. If you're in a class, I'm sure the teacher will have a warm-up period.