Sexually transmitted infections are rising faster among older adults than almost any other age group. Between 2010 and 2023, chlamydia cases among adults 65 and older more than tripled, gonorrhea cases increased sixfold, and syphilis cases surged nearly tenfold. These numbers reflect a real and growing health concern, not a statistical quirk. If you’re sexually active in your 60s, 70s, or beyond, understanding your risk and how to protect yourself matters just as much as it did decades ago.
Why Rates Are Climbing So Fast
Several forces are driving this trend at the same time. Once pregnancy is no longer a concern after menopause or a vasectomy, many people stop using condoms entirely. That removes the most effective barrier against infection. At the same time, older adults as a group tend to underestimate their own risk. The perception that STIs are a “young person’s problem” means many people don’t think twice about unprotected sex and rarely ask for testing.
Lifestyle changes play a role too. Divorce, the death of a long-term partner, and the growth of dating apps have brought more older adults into new sexual relationships. Medications for erectile dysfunction have extended sexual activity well into later decades. Retirement communities and active-adult living situations create social environments where new partnerships form regularly. None of this is a problem on its own, but without updated sexual health habits, it creates opportunity for infections to spread undetected.
Physical Changes That Increase Risk
Aging itself makes the body more vulnerable to sexually transmitted infections. In women, declining estrogen after menopause causes the vaginal lining to become thinner, drier, less elastic, and more fragile. This condition, sometimes called genitourinary syndrome of menopause, creates microscopic tears during intercourse that give bacteria and viruses easier entry into the bloodstream. The change in vaginal pH also makes infections of all kinds, including STIs, more likely to take hold.
Men experience changes too. Thinning skin on the penis and a weaker immune response can increase susceptibility. For both sexes, the immune system gradually becomes less aggressive with age, meaning the body is slower to fight off new infections and may allow them to progress further before symptoms appear.
Symptoms That Mimic Other Conditions
One of the biggest dangers for older adults is that STI symptoms often look like something else entirely. Burning or stinging during urination is a hallmark of both urinary tract infections and gonorrhea or chlamydia. Many people, and sometimes their doctors, default to treating a UTI without considering an STI as the cause.
Vaginal itching and unusual discharge are frequently written off as yeast infections. In many older adults, the actual culprit is trichomoniasis, a common STI caused by a parasite that’s easily cured with antibiotics. People often self-treat with over-the-counter antifungal products or get a prescription over the phone without ever being tested, which means the real infection goes untreated and can be passed to partners.
Many STIs produce no obvious symptoms at all, or cause only vague fatigue, joint aches, or skin changes that blend into the background of normal aging. Syphilis in particular can cause rashes, sores, and neurological symptoms that overlap with dozens of other conditions common in older adults. Without specific testing, these infections can quietly progress for months or years.
The Particular Danger of HIV After 50
HIV deserves special attention because the consequences of a late diagnosis are more severe for older adults. In 2021, more than 34% of people aged 55 and older who were newly diagnosed with HIV already had AIDS-level immune suppression at the time of diagnosis. That proportion is significantly higher than in younger adults, largely because older people are tested less often and symptoms like fatigue or weight loss are attributed to aging.
Late diagnosis matters because the immune system recovers more slowly in older adults. Multiple studies have shown that older individuals have a less robust rebound in immune cell counts after starting treatment compared to younger people, especially when treatment begins after significant immune damage has already occurred. Starting treatment earlier, which requires knowing your status, leads to dramatically better outcomes.
What Medicare Covers for STI Testing
Medicare Part B covers screening for chlamydia, gonorrhea, syphilis, and hepatitis B once every 12 months if you’re considered at increased risk. The screening itself carries no out-of-pocket cost when performed by a provider who accepts Medicare assignment. The challenge is that “increased risk” is defined broadly enough to include anyone with a new sexual partner, but many older adults don’t realize they qualify or feel uncomfortable asking.
You don’t need to wait for symptoms to request testing. In fact, because so many STIs are asymptomatic, routine screening is the only reliable way to catch infections early. If you’ve had a new partner, if a partner has had other partners, or if you’ve had unprotected sex, you have a straightforward reason to ask for a screening at your next visit.
Practical Prevention That Works
Condoms remain the single most effective way to reduce STI transmission during sex. For older adults dealing with vaginal dryness or reduced natural lubrication, using a personal lubricant alongside condoms makes barrier protection more comfortable and more effective. The key detail is lubricant compatibility: oil-based products like massage oils, petroleum jelly, or certain moisturizing creams break down latex and make condoms unreliable. Water-based lubricants are the safest all-purpose option, and silicone-based lubricants are longer-lasting while remaining safe to use with both latex and polyurethane condoms.
Beyond condoms, a few straightforward habits make a real difference. Have a conversation about sexual health and testing history with new partners before becoming intimate. Get tested together if possible. If you’re entering a relationship after years with one partner or after a period without sexual activity, treat it as a fresh start and get a baseline screening. These conversations can feel awkward, but they’re far less uncomfortable than an untreated infection.
Why Doctors Often Don’t Bring It Up
Many healthcare providers simply don’t ask older patients about their sexual activity. There’s a widespread and outdated assumption in medicine that sexual health conversations belong in younger patients’ visits. This means the responsibility often falls on you to raise the topic. If your doctor doesn’t ask, volunteer the information. A brief mention that you’re sexually active opens the door to appropriate screening and honest guidance.
It also helps to be direct about what you want. Rather than waiting for your provider to suggest a test, you can say you’d like STI screening included in your annual bloodwork. Most providers will accommodate the request without hesitation once they know you’re interested. The barrier is almost always the conversation itself, not the medical system’s willingness to provide the care.