HCG is mainly influenced by secreted hormones, personal conditions, and psychological factors. Generally, women should undergo HCG testing after pregnancy to understand its doubling rate, as this can provide insights into the healthy development of the fetus. Abnormalities in HCG doubling or data during pregnancy should raise concerns about potential fetal issues, and prompt measures should be taken. Here are some key points:

1. HCG Appearance and Doubling Rate

Around 10 days after conception, HCG begins to appear in the blood. Blood tests can therefore detect early pregnancy. Normal HCG levels indicate the growth and development of the gestational sac. Typically, HCG levels double every other day and change with the progression of pregnancy.

2. Impact of Physical Conditions on HCG

HCG levels are primarily influenced by a woman's physical condition, including other health issues, malnutrition, thin endometrial lining, poor lifestyle habits, chronic insomnia, and excessive fatigue. These factors can affect the growth and development of the gestational sac, thereby influencing HCG levels. Therefore, it is important for pregnant women to maintain good health and lifestyle habits.

3. Vigilance Against Ectopic Pregnancy

Ectopic pregnancy is the most common type of abnormal pregnancy. When a woman experiences an ectopic pregnancy, HCG levels tend to rise significantly. During prenatal checkups, doctors assess the doubling rate and magnitude of HCG levels to determine if there is a risk of ectopic pregnancy or other dangerous pregnancy conditions such as molar pregnancy.