Pregnancy: Conception – Maternity – Trimester
Fibroids and fertility impact

Fibroids and fertility impact

Understanding fibroids in a fertility context Uterine fibroids, also called leiomyomas or myomas, arise from the myometrium, the muscular wall of the uterus. They are hormonally responsive and may enlarge during reproductive years, although their growth patterns vary widely. Some remain small and stable for years; others cause heavy menstrual bleeding, pelvic pressure, urinary frequency, […]

Early warning signs of fertility problems and when to suspect an issue

Early warning signs of fertility problems and when to suspect an issue

The earliest sign is often time, not pain or obvious illness For many people, fertility problems are silent. A person may have regular periods, predictable ovulation signs, and no pelvic pain yet still face difficulty conceiving. Similarly, a male partner may have normal sexual function but still have a low sperm count, reduced motility, or […]

Age and female fertility decline

Age and female fertility decline

Why female fertility is strongly age-dependent Unlike sperm production, which continues throughout adult life, the female ovarian reserve is established before birth and declines continuously. During fetal life, the ovaries contain millions of germ cells. By birth, the number is substantially lower; by puberty, only a fraction remains. Through each menstrual cycle, a cohort of […]

Obesity and infertility

Obesity and infertility

Understanding the relationship between obesity and infertility Infertility is commonly defined as not becoming pregnant after 12 months of regular, unprotected intercourse, or after 6 months if the person trying to conceive is 35 or older. Obesity is usually defined by body mass index, with a BMI of 30 kg/m² or higher, although BMI does […]

Diabetes, insulin resistance, metabolic disorders, and female fertility

Diabetes, insulin resistance, metabolic disorders, and female fertility

Why metabolism matters for fertility Fertility is not controlled by the ovaries alone. Ovulation depends on pulsatile gonadotropin-releasing hormone from the hypothalamus, follicle-stimulating hormone and luteinizing hormone from the pituitary, ovarian estrogen and progesterone production, and the ability of the endometrium to become receptive to an embryo. Metabolic signals, including insulin, leptin, glucose availability, inflammatory […]

Autoimmune diseases and fertility

Autoimmune diseases and fertility

Why the immune system matters in reproduction Reproduction is not immunologically passive. Ovulation involves controlled inflammation, sperm must survive within the reproductive tract, the embryo must implant into the endometrium, and the maternal immune system must tolerate a genetically distinct pregnancy while still protecting against infection. Autoimmune disease can disturb this balance when immune responses […]

Pelvic inflammatory disease and infertility

Pelvic inflammatory disease and infertility

Understanding pelvic inflammatory disease Pelvic inflammatory disease is usually caused by microorganisms ascending from the cervix or vagina into the upper genital tract. It most often affects sexually active people of reproductive age. The organisms classically associated with PID include Chlamydia trachomatis and Neisseria gonorrhoeae, but PID is frequently polymicrobial, meaning vaginal and anaerobic bacteria […]

Cervical mucus problems and conception

Cervical mucus problems and conception

Why cervical mucus matters for conception Cervical mucus is produced by glands in the cervix under the influence of ovarian hormones. Although it may seem like ordinary discharge, it is a dynamic biologic fluid with several reproductive functions. Outside the fertile window, mucus is typically thicker and less penetrable, forming a barrier that helps protect […]

Uterine abnormalities and fertility

Uterine abnormalities and fertility

Understanding uterine abnormalities The uterus develops from paired embryologic structures called the Müllerian ducts. During typical development, these ducts elongate, fuse in the midline, and the central partition between them is resorbed to create a single uterine cavity. When any part of this sequence is incomplete, the result may be a congenital uterine anomaly. These […]

Hyperprolactinemia: high prolactin, ovulation impact, and symptoms

Hyperprolactinemia: high prolactin, ovulation impact, and symptoms

What prolactin is and why hyperprolactinemia matters Prolactin is produced mainly by lactotroph cells in the anterior pituitary gland. Under usual circumstances, dopamine from the hypothalamus acts as a brake on prolactin secretion. When dopamine signaling is reduced, or when pituitary lactotroph cells are overactive, prolactin can rise. During pregnancy and lactation, high prolactin is […]