What are the reasons for not getting pregnant after three years of marriage?

Patient's question:

Vaginal itching, excessive discharge, irregular menstruation for a year, married for three years without pregnancy, not using contraception

Doctor's answer:

Fertilization is a complex physiological process that requires the following conditions:
1. The ovary must release a normal egg.
2. Semen must be normal and contain healthy sperm.
3. The egg and sperm must meet in the fallopian tube and combine to form a zygote.
4. The zygote must be successfully transported into the uterine cavity.
5. The endometrium must be fully prepared to support the implantation of the zygote.
If any of these steps are abnormal, fertilization can be hindered. It is recommended to visit a hospital for a detailed examination to identify the cause and receive appropriate treatment.