Beyond the AMH Myth: Why One Lab Test Cannot Define Your Fertility

Varanasi : Anti-Müllerian Hormone (AMH) testing has become a primary concern for women assessing reproductive health, but experts caution against relying on it alone. According to Dr. Deepika Mishra, Fertility Specialist at Birla Fertility & IVF, Varanasi, a "low" or "normal" AMH report cannot define a woman's fertility in isolation.  

While AMH reflects ovarian reserve (egg quantity), it does not measure egg quality, ovulation regularity, or uterine health. Clinical evaluation requires a holistic assessment—including age, tubal patency, partner sperm health, and ultrasound markers—rather than focusing solely on isolated lab indicators.

A woman with low AMH may still conceive naturally, while someone with a reassuring AMH may face difficulty because of age, irregular ovulation, blocked tubes, uterine conditions or male-factor infertility.

AMH, or anti-Müllerian hormone, estimates ovarian reserve, meaning the remaining pool of eggs. Antral follicle count, or AFC, is the number of small follicles seen on an ultrasound early in the menstrual cycle.

Together, AMH and AFC help doctors estimate how the ovaries may respond to stimulation during IVF or egg freezing. If AMH and AFC levels are low, doctors may adjust medication doses to help retrieve an adequate number of eggs. On the other hand, if these levels are higher, medication doses may be carefully monitored and adjusted to reduce the risk of complications such as ovarian hyperstimulation syndrome (OHSS).

They do not directly measure egg quality or reliably predict natural conception. Age is also an indicator that carries weight. Fecundability, the chance of conceiving in a given cycle, declines gradually through the early thirties and then more steeply after 35. One large cohort found fecundability fell by 14 percent at 34 to 35, by 30 percent at 38 to 39, and by 53 percent at 40 to 41, against women aged 30 to 31. This reflects egg quality, not egg count, which is why a normal AMH result at 39 does not undo what age has changed.

Fertility cannot be understood through one number
Age and AMH are not the only indicators that matter. A meaningful fertility assessment considers several factors together:
●    Whether ovulation is occurring regularly 
●    Whether the fallopian tubes are open 
●    The condition of the uterus and endometrium 
●    Conditions such as PCOS or endometriosis 
●    Previous pregnancies and how long the couple has been trying 
●    The male partner’s sperm count, movement and morphology 
●    Relevant medical history, medicines and lifestyle factors 

A healthy ovarian reserve offers limited reassurance if ovulation is irregular, the tubes are blocked or a significant sperm-related concern is present.

AMH remains a valuable clinical tool, but fertility assessment combines age, ovulation, ovarian reserve, tubal and uterine health, semen findings and medical history to understand the couple’s complete reproductive profile.

The right indicators, read correctly, give patients something far more useful than a single score. They give clarity, and the confidence to plan their next step well informed.