Your knees ache going down stairs. Your fingers feel stiff first thing in the morning. Maybe your shoulder’s started acting up for no clear reason — no injury, no new workout, nothing you can point to. If this sounds familiar, you’re not imagining it, and you’re not just “getting older” in some vague, unavoidable way. There’s a real, specific reason this happens in perimenopause.
What it is
Joint pain in perimenopause can show up as general achiness or stiffness, especially in the morning or after sitting for a while — often in the knees, hands, hips, or shoulders. One particularly common but rarely discussed version is frozen shoulder, where the shoulder gradually stiffens and loses range of motion, sometimes badly enough that reaching overhead or behind your back becomes genuinely difficult. Tendon pain is common too — tendinopathy or tendonitis, often around the hip, Achilles, or shoulder — along with plantar fasciitis, that sharp heel pain especially with your first steps in the morning.
Why it happens
Estrogen helps keep inflammation in check and supports joint and cartilage health — quiet maintenance work you don’t notice until it stops. As estrogen drops, joints can become stiffer and more sensitive to normal wear and tear. The same applies to tendons: estrogen supports collagen production, which keeps tendons strong and elastic, so as it declines, tendons can become more prone to pain, even without any change in your activity level. Frozen shoulder specifically is an area researchers are increasingly investigating for a link to this same estrogen drop — early findings are promising, though the research is still emerging. It’s common enough that it even has an informal name among researchers: “menopause arthritis.”
When it’s worth a closer look
General stiffness that improves as you move, especially in the morning, is common and usually nothing to worry about. But it’s worth getting checked if you notice visible swelling, redness, or warmth in a joint, pain only on one side, or stiffness lasting more than 30 minutes every morning. A shoulder progressively losing range of motion is worth assessing early by a doctor or physiotherapist, since frozen shoulder is much easier to treat before it fully locks up.
This is one of 20 symptoms covered in Not Going Crazy: A Perimenopause Symptom Guide — a bite-sized guide covering exactly what’s normal, when it’s worth flagging, and exactly what to say to your doctor for each one. Get the full guide →
Not Going Crazy 
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