IVF (In Vitro Fertilization) and ICSI (Intracytoplasmic Sperm Injection) are advanced fertility treatments that help couples achieve pregnancy when natural conception is difficult.Both techniques involve ovarian stimulation, egg retrieval, fertilization in the laboratory, embryo transfer and a treatment course of approximately 4–6 weeks.The main difference lies in the fertilization process. In IVF, eggs and sperm are combined in a laboratory dish, allowing fertilization to occur naturally. In ICSI, an embryologist injects a single healthy sperm directly into a mature egg, making it especially beneficial for couples with severe male infertility, such as low sperm count or poor sperm motility. IVF is generally recommended for women with blocked fallopian tubes, ovulation disorders, endometriosis, or unexplained infertility, while ICSI is often chosen after previous fertilization failure or significant sperm-related issues. The success of both treatments depends on factors such as age, egg quality, embryo quality, sperm quality, and overall reproductive health rather than the technique alone.