Fertility is a complex, tightly regulated process influenced by hormonal balance, immune function, organ health, and cellular signaling. When one or more components are disrupted, conception and healthy pregnancy may become difficult. This guide explores key reproductive health conditions that can affect fertility in both women and men — from ovarian dysfunction to uterine scarring and male factor infertility.
While each condition presents distinct challenges, many are linked by inflammation, hormonal imbalances, immune dysregulation, or tissue damage that affects the reproductive organs.
The reproductive system is designed for cyclical function, communication, and coordination across multiple organ systems. Key structures include:
In females: Ovaries, fallopian tubes, uterus, cervix, and vagina
In males: Testes, epididymis, vas deferens, seminal vesicles, and prostate
Fertility relies on hormone cascades (e.g., FSH, LH, estrogen, testosterone), egg and sperm quality, uterine receptivity, and proper timing. When one or more of these systems are impaired, conception and pregnancy may be affected.
Refers to decreased ovarian reserve or impaired function of the ovaries. It can lead to irregular ovulation, poor egg quality, and shortened reproductive window. Common causes include age, autoimmune disease, toxins, or genetics.
A chronic inflammatory condition where tissue similar to the uterine lining grows outside the uterus. It can cause pain, scarring, and inflammation that affects the ovaries, fallopian tubes, and surrounding tissues — often leading to infertility.
Accounts for roughly half of all infertility cases. Common causes include low sperm count, poor motility, abnormal morphology, or blockages. Contributing factors range from hormonal imbalances and infections to environmental toxins and lifestyle.
Characterized by adhesions or scar tissue inside the uterus, often following surgery or infection. It can prevent implantation or increase the risk of miscarriage by disrupting the uterine lining.
Inflammation: Chronic pelvic or systemic inflammation affects egg and sperm health and uterine receptivity
Hormonal dysregulation: Disruption in FSH, LH, estrogen, progesterone, or testosterone affects ovulation and sperm production
Immune system involvement: Autoimmune activity can impair reproductive tissues or lead to early pregnancy loss
Tissue scarring or fibrosis: Structural damage can prevent fertilization or implantation
These shared mechanisms suggest that a systems-level approach to fertility evaluation may be more effective than targeting individual symptoms.
Hormonal testing (FSH, AMH, LH, estradiol, testosterone, prolactin, thyroid function)
Pelvic ultrasound or hysterosalpingography (HSG) to assess uterine structure and tubal patency
Semen analysis to evaluate male fertility factors
Laparoscopy for endometriosis diagnosis and staging
Endometrial biopsy or imaging for scarring or lining issues
Genetic testing when appropriate
A thorough diagnostic process helps guide next steps and uncover hidden contributors.
Prognosis: What to Expect
Fertility outcomes vary widely depending on the diagnosis, age, and treatment approach. Many individuals with reproductive health challenges are able to conceive with appropriate support. Early detection, whole-body evaluation, and customized care significantly improve the odds of successful pregnancy and long-term reproductive health.
When to Seek Specialized Evaluation
You’ve been trying to conceive for 6–12 months without success
You experience irregular or absent menstrual cycles
You have a known diagnosis like PCOS, endometriosis, or thyroid dysfunction
You’ve had recurrent miscarriages
You’re over age 35 and planning pregnancy
You or your partner have a history of cancer, hormone issues, or testicular trauma
Educational Resources
American Society for Reproductive Medicine (ASRM)
Resolve: The National Infertility Association
Endometriosis Foundation of America
Society for Male Reproduction and Urology
Office on Women’s Health – Fertility