<s>[INST] I ve had my implant in my arm for 3 weeks now and I m concerned about it. I ve had no emotional problems or anything but my arm has a red line down it and it is itchy. A friend of mine had hers done less than a week ago and you can t see hers. Should I be worried? [/INST] Hi, Once your body heals from the insertion of the birth control implant, you should not experience any itching or any skin changes.  The rod also should not be visible unless someone is examining your arm very closely. The fact that you see redness on your arm is very concerning that the area may have become infected. I would recommend that you follow up with your doctor or healthcare provider who inserted the implant, as you may need to be treated with antibiotics or even have the implant removed.  There is no reason to worry, however you should be seen right away (within a week) or if that is not possible at your doctor's office, a visit to a local urgent care center or emergency room would be a good idea. I hope that I was able to adequately answer your question today, and I hope you get diagnosed accurately and treated soon. Best wishes, </s>