Pregnancy: Conception – Maternity – Trimester
Stress-related infertility in women

Stress-related infertility in women

What stress-related infertility means In everyday language, people often use the phrase stress-related infertility to mean that anxiety, chronic pressure, or emotional strain seem to be interfering with conception. Medically, this is better understood as a situation in which stress may be one contributing factor among several, rather than a stand-alone diagnosis. Clinicians are cautious […]

Untreated infections and infertility risk

Untreated infections and infertility risk

How infections can affect fertility Fertility depends on a finely coordinated pathway: ovulation, egg pickup by the fallopian tube, fertilization, embryo transport, and implantation. An untreated infection can interfere with any of these steps, but the most established pathway is structural injury to the upper reproductive tract. When bacteria spread upward from the cervix, they […]

Infections affecting fertility

Infections affecting fertility

How infections can interfere with fertility Fertility depends on a coordinated sequence of events: ovulation, sperm production and transport, fertilization, and implantation in a healthy uterine environment. Infection can disturb any step in that chain. In women, the most important mechanism is usually ascending infection from the lower genital tract to the uterus and fallopian […]

Cervical factors in infertility

Cervical factors in infertility

What cervical factors in infertility mean The cervix is the lower portion of the uterus and serves as the gateway between the vagina and the uterine cavity. In natural conception, sperm must pass through the cervix before reaching the upper reproductive tract. When that passage is impaired, fertility may be affected even if egg release […]

Uterine shape abnormalities

Uterine shape abnormalities

What uterine shape abnormalities are Uterine shape abnormalities are structural differences in the uterus that arise during embryologic development, usually from incomplete fusion, incomplete resorption, or atypical formation of the Mullerian ducts. Because these changes happen before birth, they are considered congenital uterine anomalies rather than acquired disease. Clinically, these findings matter because the uterus […]

Polyps and implantation issues

Polyps and implantation issues

What endometrial polyps are Endometrial polyps are focal overgrowths of the uterine lining. They are often discovered incidentally during an infertility workup or when a person is being evaluated for abnormal uterine bleeding. Many are small and asymptomatic, and many are discovered only because imaging happens to look closely at the uterine cavity. For fertility, […]

What affects egg quality

What affects egg quality

Age and ovarian biology Chronological age is the most established factor affecting oocyte quality. As ovarian aging progresses, the chance of meiotic errors rises, which means the egg is more likely to carry an abnormal number of chromosomes. That matters because chromosomal abnormalities in eggs are a major reason embryos fail to implant or miscarry […]

Signs of low egg reserve

Signs of low egg reserve

Why the signs are easy to miss Most people with diminished ovarian reserve have no day-to-day symptoms. The ovaries can have fewer remaining eggs than expected without causing pain, obvious hormone symptoms, or a dramatic change in how someone feels. That is why the first sign is often not something you notice in the body […]

How ovarian reserve declines with age

How ovarian reserve declines with age

The biology of ovarian reserve The ovary contains a fixed pool of non-growing follicles that is established before birth. From that point forward, follicles are lost through normal biologic processes, including atresia, so the number of available follicles steadily falls across childhood, adolescence, reproductive life, and ultimately menopause. In other words, the ovary does not […]

Common hormonal disorders affecting fertility

Common hormonal disorders affecting fertility

How hormones coordinate fertility Reproductive function is controlled by a feedback network called the hypothalamic-pituitary-gonadal axis. The hypothalamus releases gonadotropin-releasing hormone, the pituitary responds with luteinizing hormone and follicle-stimulating hormone, and the ovaries or testes then produce sex steroids and gametes. That signaling has to be timed precisely. If the rhythm is disrupted, ovulation may […]