Question: why are fsh and lh given in fertility treatment?
Answer: LH in synergy with follicle stimulating hormone (FSH) stimulates follicular growth and ovulation. Thus, normal follicular growth is the result of complementary action of FSH and LH. The availability of recombinant human LH (r-hLH) has paved a way for supplementation of LH in down-regulated IVF cycles.