Your periods are suddenly unpredictable. You’re waking at 3 a.m. for no reason. Your patience is shorter than it used to be, and your jeans fit differently even though nothing about your routine has changed.
Many women chalk these changes up to stress, a busy season, or simply getting older. But for women in their late 30s and 40s, there’s often another explanation: perimenopause.
Perimenopause is one of the most common, and most overlooked, transitions in a woman’s life. Knowing the signs can help you stop second-guessing your body and start getting real answers.
What Is Perimenopause?
Perimenopause is the transition leading up to menopause, when your ovaries gradually produce less estrogen, and your hormone levels begin to rise and fall unevenly. It most often starts in your 40s, though some women notice changes in their mid-to-late 30s.
This phase typically lasts around four years, but it can be shorter or stretch closer to a decade. You officially reach menopause once you’ve gone 12 consecutive months without a period, which happens around age 51 on average in the U.S.
Because hormones fluctuate rather than drop steadily, symptoms can come and go, change month to month, and look very different from one woman to the next. That’s exactly why perimenopause is so easy to miss.
10 Early Signs of Perimenopause
1. Irregular periods. This is often the first sign. Cycles may shorten, lengthen, become heavier or lighter, or skip a month entirely.
2. Hot flashes and night sweats. Sudden waves of heat across your chest, neck, and face, sometimes followed by chills. At night, they can soak your sheets and wake you up.
3. Trouble sleeping. Even without night sweats, many women find it harder to fall asleep or stay asleep during perimenopause.
4. Mood changes. Irritability, anxiety, low mood, or feeling more emotional than usual are common as estrogen fluctuates. If you have a history of depression or PMS, these changes may feel stronger.
5. Brain fog. Forgetting words, losing your train of thought, or struggling to focus can be unsettling. For most women, it improves after the transition.
6. Vaginal dryness and discomfort during sex. Lower estrogen thins and dries vaginal tissue, which can cause itching, burning, or pain during intimacy.
7. Bladder changes. You may notice more urgency, more frequent bathroom trips, or small leaks when you cough, laugh, or exercise.
8. Lower libido. Changes in hormones, sleep, mood, and comfort can all affect your interest in sex.
9. Weight and body changes. Many women notice weight settling around the middle, even without changes to diet or exercise.
10. Hair, skin, and joint changes. Thinner hair, drier skin, and new joint aches can all be linked to shifting hormone levels.
What Can Help
The good news: perimenopause symptoms are common, but you don’t have to simply push through them. Treatment depends on your symptoms, health history, and goals, and options include:
Lifestyle support
Regular exercise, strength training, consistent sleep habits, limiting alcohol and caffeine, and stress management can ease many symptoms.
Hormone therapy
For moderate-to-severe hot flashes and night sweats, hormone therapy is one of the most effective treatments. In late 2025 and early 2026, the FDA began removing several long-standing boxed warnings about heart disease, breast cancer, and dementia from hormone therapy labels.
The agency also noted that women who start within 10 years of menopause, generally before age 60, may see benefits. It’s still not right for everyone, so the decision should be made with your provider.
Vaginal estrogen
For dryness, painful sex, and some urinary symptoms, low-dose vaginal estrogen treats the tissue directly with minimal effect on the rest of the body.
Non-hormonal options
Several prescription medications can reduce hot flashes or help with mood and sleep for women who can’t or prefer not to use hormones.
Birth control
In perimenopause, you can still get pregnant. Some hormonal birth control methods can also help regulate irregular, heavy periods.
When to See Your OB-GYN
You don’t need to wait for symptoms to become unbearable. Book a visit if your symptoms are affecting your sleep, work, relationships, or quality of life.
Some changes should be checked promptly, because they can point to conditions other than perimenopause:
• Very heavy bleeding, such as soaking through a pad or tampon every hour
• Periods lasting longer than seven days, or coming closer than 21 days apart
• Bleeding between periods or after sex
• Any bleeding after you’ve gone 12 months without a period
• Severe mood changes, anxiety, or depression
There’s no single test that confirms perimenopause, since hormone levels change from day to day. Your provider will usually review your age, symptoms, and cycle history, and may run labs to rule out other causes, such as thyroid issues or anemia.
You Don’t Have to Guess Your Way Through It
Perimenopause is a natural transition, but that doesn’t mean you have to feel unlike yourself for years. With the right evaluation, many women find real relief, whether that’s better sleep, steadier moods, more comfortable intimacy, or more predictable cycles.
At SHAE Women’s Health, we take the time to listen, explain your options clearly, and build a plan that fits your body and your life.
Ready to talk about what you’re feeling? Visit shaemed.com or call 339-243-8429 to schedule your appointment.