How to change a foreign birth certificate in the USA?
All my docs have the wrong DOB which makes me 1 yr 5 mth older than I actually am. I was born in a small village at home so my BC was never recorded. But that was needed to come to USA, so my parents got a BC, but because of the way age is counted in my country, they put wrong BC. They know I have was born in the year of dog one month after New Years. If I go to an attorney and take it to court with only affidavits as evidence, would they accept it? Or do I have to change the BC from my country? I am in college now and I was around 8 or 9 when these happened so if I try to change it now, would it affect my parents who is Naturalized USC, my siblings, or me? I did not try to naturalize because I thought it would be easier to change with GCard. I have been in the USA for 7 years.
Any insight will be appreciated

You would be required to change it in your country of origin. This is not a United States issue. The birth certificate is a seperate document. You must contact them about how to make changes.

Having your birth cert. corrected is not going to effect your family.

In order to change DOB in birth certificate, this must be done at the issued office in your home country only. Check first if that is doable.. because in some countries, to change important details in birth certificate can only be done with court order.

If your parents are naturalized USC and you have been in US 7 years, I would advise not to change DOB or any other details. It might jeopardize the whole family if immigration sees this as document fraud.

If that birth date is consistent on all your documents, then at this point it would be best to just leave it alone. Changing it would bring more questions and problems in the future. (They might say you lied to immigration. Records will not match up.) Plus how are you going to prove that the birth date you claim is right?

This is not uncommon. Many people from the countryside in countries like China where births are not recorded well have a birth date on paper that is not their real birth date, either because their parents changed it to make them look younger, or to a date that is more auspicious, or their birth date refers to the "traditional" calendar and not the Western calendar.

You know your real birthday and can celebrate it with your friends and family. But for official purposes you should continue to use the birth date on your documents.

You know your real birthday and can celebrate it with your friends and family. But for official purposes you should continue to use the birth date on your documents.

I agree with this; although I still say it will not effect his family if he changes the date.

BUT the old saying still goes 'let sleeping dogs lie (down)'. Meaning let well enough alone if immigration does not know the difference.