Positive urine test refers to urine HCG, urine pregnancy test paper positive, there may be several reasons: 1, pregnancy is the most common reason, in about 30 days after menopause will appear urine pregnancy test paper positive, after a few days will be accompanied by nausea, vomiting, anorexia, and other early pregnancy reactions, and further examination of the blood HCG, as well as the ultrasound will suggest pregnancy. 2, ectopic pregnancy is also referred to as ectopic pregnancy, also appear urine test positive, but after a few days after the blood HCG and does not The HCG does not double after a few days, and the ultrasound does not indicate the presence of a gestational sac in the uterine cavity, which is an ectopic pregnancy.3. Gestational trophoblastic disease, which is a disease and not a pregnancy, will also appear positive in the urine test, and the diagnosis can be confirmed by checking the blood HCG and the ultrasound in the next few days.4. False-positive urinalysis test paper, as it may be affected by other interferences in some cases, will show false-positive results. If the test paper is changed and the test is repeated on the second day, the test may be negative. 5, biochemical pregnancy, refers to the formation of a fertilized egg, but did not attach to the bed. It is like having a menstrual period and will not affect the next conception.