How many types of prenatal examinations are there?

Prenatal checkups are an important part of ensuring maternal and fetal health, covering the entire process from preconception to postpartum, and are mainly divided into female and male examinations.

Examinations for women include:

1. Routine gynecological examination: This involves visually inspecting the external genitalia and performing a bimanual or trimanual exam to evaluate the vagina, uterus, and surrounding structures for any abnormalities.

2. Pelvic ultrasound: This allows visualization of the uterus and adnexa, helping to assess uterine size, shape, and the presence of cysts, fibroids, or other abnormalities.

3. Hormone level testing: Such as measurements of follicle-stimulating hormone (FSH) and progesterone, to evaluate ovarian function.

4. Fallopian tube examination: Procedures such as tubal patency tests or hysterosalpingography are performed to confirm that the fallopian tubes are open, ensuring the egg can travel smoothly into the uterus.

5. Basal body temperature monitoring: Analyzing changes in basal body temperature helps determine the ovulation cycle.

Examinations for men include:

1. Semen analysis: Evaluates sperm count, motility, and morphology to assess fertility potential.

2. Hormone level testing: For example, testosterone testing to evaluate reproductive endocrine function.

3. Testicular ultrasound: Examines testicular size, shape, and internal structure to identify any abnormalities.

4. Genetic screening: Men with a family history of genetic disorders may undergo genetic testing to prevent passing these conditions on to offspring.

Prenatal exams also include general physical exams, genetic disease screening, and testing for infectious diseases such as hepatitis B and HIV, to ensure the body is ready for pregnancy. Prenatal care during pregnancy is divided into stages: early pregnancy checkups confirm pregnancy, assess fetal development, and perform Down syndrome risk screening; mid-pregnancy checkups include detailed ultrasounds (such as 4D color Doppler ultrasound), amniocentesis or non-invasive prenatal genetic testing, and screening for gestational diabetes; late pregnancy checkups monitor fetal movement, fetal heart rate, and amniotic fluid volume to prevent preterm birth and prepare for delivery.

Each examination has a specific timing and purpose, and should be performed according to medical guidance and at the recommended intervals.