Conversation: The conversation between human and AI assistant.
[|Human|] I am 14 years old. I do fitness 3 day in a week. last year I noticed i had a vein on my left arm right around my bicep. I then noticed that i did not have one on my right arm. I thought that it would appear later on. one year later it still hasn t appeared, and I m curious as to why and if I will ever see that vein later on in my life
[|AI|]  Hi friendWelcome to Chat Doctor Veins are extremely variable in location among individuals / and between the two sides in the same individual.  They are the most inconstant of all the structures in human anatomy. Probably the right one has a different course / may be deep; even absent! The chances are - you may not see it at all! No cause for concern. Take tarnishing speedy recovery God bless Good luck