<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi Dr Grief,i am from Philippines and i got my Tb skin test check two days ago and its showed that its positive, what is that mean?i dont have any symtoms of having Tb..i have a medical exam in philippines before i came here in usa and everything is good..i also have an chest xray 3 years ago.and some vaccine  <response>: Hey dear as you are not having any symptoms you need not worry about. The positive skin TB test does not always mean a disease. The positive TB test indicates that you might have had infection with TB bacilli which does not mean you have suffered the disease from it. Having TB infection having TB disease are two different entities.Furthermore, occasionally few people who have been vaccinated with BCG vaccination might show positive re-activity to the test. The results of the positive TT test should always be correlated with the symptoms. persistent non-responsive cough with expectoration more than 3 weeks duration, weight loss, fever, difficulty in breathing Etc So considering your case you need not worry about. 