What does it mean when a pregnancy test strip shows one dark line and one faint line?
The presence of one deep and one shallow line on an early pregnancy test paper indicates a low level of HCG (human chorionic gonadotropin) in urine, which often occurs during the early stages of pregnancy for women. Proper nutritional protection during pregnancy is essential. If, after confirmation of pregnancy, the fertilized egg implants ectopically or the embryo develops abnormally, the early pregnancy test paper may also show one deep and one shallow line. In such cases, relevant examinations should be promptly performed to determine the cause and then targeted treatment can be given. The reason for one deep and one shallow line on the early pregnancy test paper is due to a low level of HCG in urine. The following are the causes:
1. In the early stages of pregnancy, the HCG levels in blood and urine are low, which may result in the early pregnancy test paper showing one deep and one shallow line.
2. Poor embryonic development. If there is poor embryonic development, the HCG levels in blood and urine will not increase significantly and will remain low. This can also cause the early pregnancy test paper to show one deep and one shallow line.
3. Biochemical pregnancy. Although a fertilized egg is formed during biochemical pregnancy, it does not implant in the uterus. Therefore, the HCG levels in blood and urine are generally low, and the early pregnancy test paper may also show one deep and one shallow line. In such cases, further examination of the uterus and appendages, as well as repeated blood HCG tests, are necessary to determine the cause.
