Screenings by decade
- 20s: cervical cancer screening starts at 21 (Pap every 3 years); blood pressure yearly; STI screening as appropriate; skin checks; mental health check-ins.
- 30s: Pap + HPV co-testing every 5 years (or Pap alone every 3); preconception counseling if pregnancy is possible; cholesterol and diabetes screening per risk.
- 40s: mammograms every other year starting at 40 under current U.S. task force guidance (some groups advise annually — discuss your risk); continue cervical screening; colon cancer screening starts at 45.
- 50s–60s: continue breast and colon screening; bone density (DEXA) at 65, or earlier with risk factors; cardiovascular risk assessment — heart disease is the leading killer of women, and symptoms can differ from the classic male pattern (fatigue, shortness of breath, nausea, jaw or back discomfort).
Family history changes these timelines — strong histories of breast, ovarian, or colon cancer may warrant earlier screening or genetic counseling. See also our blood pressure and diabetes guides.
Contraception: matching method to life
Effectiveness in real-world use varies more than people think: IUDs and implants are over 99% effective for years with nothing to remember; pills, patches, and rings are ~93% effective in typical use; condoms less so but uniquely add STI protection. Modern IUDs are appropriate for most women including those who haven't had children, and fertility returns quickly after removal of any of these methods. Combined hormonal methods aren't right for everyone (e.g., migraine with aura, some clotting risks) — which is exactly what the prescribing conversation is for. Most methods have inexpensive generic versions, and the ACA requires most insurance to cover contraception without cost-sharing.
Perimenopause and menopause, demystified
Perimenopause — the years of hormonal fluctuation before periods stop (typically starting in the mid-40s) — can bring irregular cycles, hot flashes, night sweats, sleep disruption, mood changes, and brain fog. Menopause is confirmed after 12 months without a period, at an average age of 51.
Hormone therapy (HT) deserves a fair hearing. After the 2002 WHI study, HT use collapsed; two decades of reanalysis have produced a more nuanced consensus: for healthy women under 60 or within 10 years of menopause with bothersome symptoms, HT is the most effective treatment for hot flashes and night sweats, and benefits generally outweigh risks. It's not for everyone (history of breast cancer, clots, or stroke changes the math), and the decision is individual — but "hormones are simply dangerous" is outdated. Non-hormonal options (certain SSRIs/SNRIs, gabapentin, the newer drug fezolinetant, and CBT for symptoms) genuinely help too. Vaginal estrogen for dryness and urinary symptoms is low-dose, local, and considered safe for most women, including many for whom systemic HT isn't advised.
Conditions underdiagnosed in women
- Iron deficiency — extremely common with heavy periods; fatigue isn't "just life." A ferritin blood test settles it. Heavy bleeding itself is treatable, not something to endure.
- Thyroid disease — women are 5–8× more likely to have it; symptoms (fatigue, weight change, mood, cold intolerance) get misattributed. A TSH test is cheap.
- PCOS — affects up to ~1 in 10 women (irregular cycles, acne, excess hair growth) and carries metabolic risks worth managing early.
- Endometriosis — pain that disrupts life is not a normal period; average diagnosis still takes years. Push for evaluation.
- Autoimmune disease and heart disease — both present atypically in women and are missed more often. Persistent unexplained symptoms deserve workup, and it's always legitimate to seek a second opinion.
Bone health: the quiet priority
Women can lose up to 20% of bone density in the 5–7 years after menopause, and hip fractures are more lethal than most people realize. The playbook is simple and starts decades early: adequate calcium (food first) and vitamin D, weight-bearing and resistance exercise, not smoking, limited alcohol, DEXA screening at 65 (earlier with risk factors), and effective generic medications (bisphosphonates) if osteoporosis is diagnosed. Fall-proofing — strength, balance work, vision correction, home hazards — prevents the fracture, which is the point.