Aches, Stiffness, and Frozen Shoulder: Why Your Joints Hurt in Perimenopause

Stiff fingers on the coffee mug. Knees that complain on the stairs. A shoulder that will not reach the top shelf, and a heel that stabs with your first steps out of bed.

For many Women, the body's first Midlife message arrives through the joints.

I know this in my own body. This is how I describe the years before I found my answers:

By my early 40s I had a fatigue that would not lift no matter how much I slept. I had brain fog coming on in waves... I had joint pain that came and went.

'Your Bones: Osteopenia, Osteoporosis, and How to Build Strength for Life' covers Dr. Vonda Wright's musculoskeletal syndrome of Menopause, the LIFTMOR trial, and sarcopenia, and the Joint Pain section of 'The Mimics' lists what else can sit behind an aching joint. This chapter goes into the tissues themselves: cartilage, the joint lining, tendons, the shoulder capsule, and the muscle that carries you. Your joints, muscles, and bones share 1 system, and they respond to the same care.

Why Your Joints Ache in Perimenopause

A 2026 analysis pooled 37 studies of 93,021 Women across 22 countries. Muscle or joint pain was reported by:

• 40 percent of Women before Perimenopause
• 57 percent of Women in Perimenopause
• 59 percent of Women after Menopause

An earlier analysis of 16 studies put the figure higher, at 71 percent of Women in Perimenopause. Both analyses rest on observational studies, and the pattern in both is the same. Joint and muscle pain climbs with the Menopause transition, and for many Women it arrives in Perimenopause, years before the final period.

3 things happen inside the joint as estrogen falls.

• Cartilage loses a signal. Cartilage, the smooth cushion at the end of each bone, carries estrogen receptors. Hip, knee, and finger osteoarthritis rise faster in Women than in men after 50.
• The joint lining becomes more reactive. The synovium is the thin lining that makes the fluid your joints glide on. Researchers now describe osteoarthritis as a disease of bone, cartilage, and synovial inflammation together, and animal studies show estrogen calms that inflammation.
• The body-wide brake eases off. Estrogen is 1 of your body's brakes on inflammation, as 'The Mimics' chapter explains. As it drops, inflammatory messengers from your gut, your blood sugar, or an Autoimmune condition reach the joints more easily.

Much of this research comes from animals and lab markers, and no trial has shown that hormone therapy prevents osteoarthritis. A new ache in your 40s deserves curiosity, and age is only part of the answer.

The Root Cause Question

Functional Medicine asks why. A root cause is the upstream driver, the thing that sets the ache in motion, rather than the ache downstream.

An anti-inflammatory pill quiets the signal. It leaves the source untouched. For an aching Midlife joint, the usual upstream drivers are:

• A hormone shift: falling estrogen, low testosterone, and a thyroid running slow.
• A blood sugar problem: high insulin and high HbA1c, which feed inflammation.
• A gut and food trigger: a permeable gut, gluten, dairy, and for some Women nightshades.
• A nutrient gap: low vitamin D, low protein, low magnesium, or iron that is too low or too high.
• An immune process: an Autoimmune condition that has settled in the joints.
• An infection: Lyme disease, or a gut infection that keeps the immune system on alert, as the Autoimmunity chapters describe.
• Load and muscle loss: extra weight on the knees, and too little muscle to protect the joint.
• Stress and short sleep: both raise inflammation and slow repair.

Many Women carry more than 1 of these at once, which is why 1 answer rarely resolves the ache.

What Can Be Behind It

This chapter walks through each driver, and several have a whole chapter that goes deeper. Find the 1 that sounds most like you, and start there.

• Your hormones. Falling estrogen eases the brake on inflammation, and low testosterone thins muscle. 'Hormones and Your Muscles and Joints', below, 'What Is Actually Happening in Your Midlife Body: Your Hormones, 1 by 1', and 'Hormone Therapy 101: Your Options, the History, and the Myths' go deeper.
• Your thyroid. Aches, cramps, stiffness, a frozen shoulder, and tingling hands can all be your thyroid speaking. 'Your Thyroid, In Depth: What's Blocking Your Thyroid' goes deeper.
• Blood sugar. A high HbA1c tracks with frozen shoulder and tendon trouble. 'Sugar, and the Addiction Nobody Names' goes deeper.
• Your gut and your plate. A permeable gut and food triggers can send inflammation to your joints. 'The Gut, In Depth: Permeability, Testing, and Healing the Lining' and 'The Autoimmune Protocol: 90 Days to Calm the Gut and Rebuild' go deeper.
• Inflammation. Remember, in 'Inflammation: The Fire Under Everything, Where It Comes From, and the Damage It Does', the aches that seem to move from joint to joint.
• Nutrients. Low vitamin D, magnesium, protein, and iron at either extreme all show up in muscles and joints. 'Supplements: Test, Don't Guess' goes deeper.
• Autoimmunity. Rheumatoid arthritis, psoriatic arthritis, lupus, and Sjögren's can settle in the joints. 'How Autoimmunity Begins: The 3 Factors and the Years Before a Diagnosis' and 'Autoimmune Remission Is Possible: The Autoimmune Recovery Method' go deeper.
• Infections and toxins. Lyme disease, gut infections, and mold keep the immune system on alert. 'Root Causes: Parasites, Heavy Metals, Mold, and Environmental Toxins' goes deeper.
• Bone and muscle loss. The musculoskeletal syndrome of Menopause joins joints, muscle, and bone. 'Your Bones: Osteopenia, Osteoporosis, and How to Build Strength for Life' goes deeper.
• Sleep and stress. Short sleep raises tomorrow's pain. 'Sleep: Why It Breaks in Midlife, and How to Get It Back' and 'Stress: The Load Women Stop Noticing' go deeper.
• The mimics. The Joint Pain section of 'The Mimics: What Else These Midlife Symptoms Could Actually Be' lists what else can sit behind an aching joint.

Frozen Shoulder: The Midlife Shoulder

Frozen shoulder, called adhesive capsulitis, happens when the capsule around the shoulder joint thickens, tightens, and forms scar-like bands. The shoulder hurts, and then it stops moving.

It affects an estimated 2 to 5 percent of the population. Most people diagnosed are Women between 40 and 60, the exact window of Perimenopause and early Menopause.

It usually moves through 3 stages, according to the American Academy of Orthopaedic Surgeons:

• Freezing, 6 weeks to 9 months: pain grows and range of motion shrinks.
• Frozen, 4 to 6 months: pain may ease, and the stiffness stays.
• Thawing, 6 months to 2 years: motion slowly returns.

Full recovery can take up to 3 years, and a review found no evidence that an untreated shoulder always returns fully to normal. Waiting it out can cost you years, so early care matters.

The strongest known risk factors are metabolic and hormonal. In a 2026 analysis, people with diabetes had 3.69 times the odds of frozen shoulder. Another analysis found HbA1c, your 3-month blood sugar average, was the metabolic marker most raised in people with frozen shoulder.

Your thyroid belongs in the conversation. A 2023 analysis of 10 studies found thyroid disease linked to frozen shoulder, with 1.92 times the odds for hypothyroidism and 2.56 times the odds for subclinical hypothyroidism, the stage where TSH is raised and Free T4 still looks normal. A frozen shoulder is a reason to check your thyroid and your blood sugar, whether or not anyone else asks.

Estrogen is the leading suspect behind the timing, and the evidence is still young.

In a 2026 pilot study of 1,952 Women aged 40 to 60, frozen shoulder occurred in 3.95 percent of Women using hormone therapy and 7.65 percent of Women who were not, and that difference was not statistically significant. The authors call for larger studies.

What helps, per the American Academy of Orthopaedic Surgeons:

• Physical therapy focused on flexibility, the primary treatment.
• Anti-inflammatory medication, a steroid injection, or hydrodilatation, where fluid gently stretches the capsule, decided with your doctor.
• Surgery, only when the others have not restored motion.

See someone at the first sign of a stiffening shoulder.

Wear, or Autoimmune? Telling the Arthritis Types Apart

Osteoarthritis is breakdown of cartilage with bone changes underneath, driven by load, age, hormones, and low-grade inflammation. It often shows up in 1 knee or hip, or in the finger joints closest to the nails, and at the base of the thumb.

Rheumatoid arthritis is an Autoimmune condition in which the immune system settles on the joint lining. According to the CDC, Women are 2 to 3 times more likely to have it, and risk is highest between 50 and 59.

The Joint Pain section of 'The Mimics' gives the pattern clues, and here they are side by side:

• Morning stiffness. Osteoarthritis: usually under 30 minutes. Rheumatoid arthritis: often longer than 30 to 60 minutes.
• Which joints. Osteoarthritis: often 1 knee or hip, the end finger joints, the thumb base. Rheumatoid arthritis: the small joints of both hands or both feet, in a matching pattern.
• What the joint looks like. Osteoarthritis: bony enlargement, little heat. Rheumatoid arthritis: soft, warm, puffy swelling.
• What makes it worse. Osteoarthritis: use, easing with rest. Rheumatoid arthritis: rest and mornings, easing as you move.
• The rest of you. Osteoarthritis: usually well. Rheumatoid arthritis: often fatigue, low fever, or feeling unwell.

Psoriatic arthritis travels with psoriasis of the skin or nails, and lupus and Sjögren's disease can bring joint pain with rashes, dry eyes, and a dry mouth. 'The Most Common Autoimmune Conditions in Women' describes each.

Your Gut, Your Plate, and Your Joints

Inflammation that starts in your gut circulates. An aching knee can begin with a permeable gut lining far from the joint itself. 'How Autoimmunity Begins: The 3 Factors and the Years Before a Diagnosis' explains molecular mimicry, and 'The Gut, In Depth: Permeability, Testing, and Healing the Lining' explains how to test and rebuild the lining.

Nightshades. Tomatoes, potatoes, eggplant, and all peppers are removed during the 90 days of the Autoimmune Protocol and return in Stage 4 of reintroduction, 1 at a time. The Arthritis Foundation says there is little research either way, and it suggests a shorter version of the experiment AIP uses, removing nightshades and bringing them back slowly to see what your joints say.

In my own teaching, I watch the numbers and the joints together. This is how I explain it in the Autoimmune Recovery Method:

As your antibodies lower, you're going to, presumably, be feeling increased energy. The fog will be lifting, the joint pain will be subsiding.

Your antibodies and your joints tell the same story from 2 directions.

Gluten and dairy stay out for the Autoimmune body, as the AIP chapter explains, and grain-free does not mean carbohydrate-free.

Sugar. In 2 large studies of US nurses, Women who drank 1 or more sugar-sweetened sodas a day had a 63 percent higher risk of developing seropositive rheumatoid arthritis, and the link was stronger for Women diagnosed after 55. Diet soda showed no link.

These studies are observational, and they fit with the frozen shoulder and HbA1c research above. Steady blood sugar protects your joints as surely as it protects your heart. The Sugar chapter shows how.

Weight and your knees. In a trial of adults with knee osteoarthritis, each pound of weight lost removed about 4 pounds of load from the knee with every step. Over thousands of steps a day, a few pounds can mean tons less pressure on your knees.

Fresh ginger. When I am in a flare, I increase fresh cooked ginger in my meals, 1 of the gentlest additions to an AIP plate.

Strength Training for Joints and Muscles

The Bones chapter laid out LIFTMOR and a sample week. The same program protects your joints, because strong muscles help carry the load around each joint. The World Health Organization recommends muscle-strengthening activity for every age, and the 2019 American College of Rheumatology and Arthritis Foundation guideline strongly recommends exercise for osteoarthritis of the hand, hip, and knee.

Principles that keep joints happy while you build:

• Progress gradually. Add weight, a set, or a repetition over weeks.
• Pain is information. Mild discomfort that settles within a day is usually fine. Sharp pain, or pain that is worse the next morning, means lighten the load and ask your physical therapist.
• Train the whole chain. Strong hips protect knees, and a strong upper back protects shoulders. Squat, hinge, push, pull, and carry.
• Move through your full range, with control, especially in your shoulders and hips.
• Give tendons time. Tendons adapt more slowly than muscle, so a physical therapist can load a sore heel or hip step by step.

Hormones and Your Muscles and Joints

• Estrogen alone. In the Women's Health Initiative trial of 10,739 Women after hysterectomy, about 77 percent had joint pain at the start. After 1 year, joint pain was a little less common on estrogen, 76.3 percent compared with 79.2 percent on placebo, and it was also less severe. The difference held through year 3.
• Estrogen plus progestin. Among Women who had symptoms when the trial began, 47.1 percent on hormones reported relief of joint pain or stiffness, compared with 38.4 percent on placebo.
• After stopping. When the estrogen plus progestin trial ended, Women who had been on hormones were about 2 times as likely to report pain or stiffness in the following year as Women who had been on placebo.

These trials used an oral horse-derived estrogen and a synthetic progestin in Women averaging 63, as the Hormone Therapy 101 chapter explains. 'Why Some Women Love It' in that chapter lists joints that ache less among the reasons. The trials support a real and modest effect.

Muscle strength. An analysis of 23 studies found about 5 percent greater muscle strength in Women on estrogen-based hormone therapy.

Testosterone helps build and keep muscle, as the Testosterone section describes. The 2019 Global Consensus found good trial evidence for testosterone in Women only for distressing low desire after Menopause, so prescribing it for strength rests on clinical experience.

The foundation stays the same with or without hormones: lifting, protein, and sleep. Every hormone decision belongs with your prescriber.

Movement That Soothes: Qigong, Walking, and Mobility

Strength training builds. Gentle daily movement keeps you supple and the Nervous System calm.

Tai chi and Qigong. The 2019 American College of Rheumatology and Arthritis Foundation guideline strongly recommends tai chi for osteoarthritis of the knee and hip. In a trial of 204 adults with knee osteoarthritis, tai chi 2 times a week for 12 weeks worked as well as standard physical therapy, and it brought greater improvement in mood. An analysis of 14 trials of traditional Chinese exercise, the family Qigong belongs to, found less pain and stiffness and better function in knee osteoarthritis.

Great Energy Qigong itself has not been studied in a trial. I teach it because slow, rooted, flowing movement, done with the breath, helps joints move and the Nervous System settle at the same time. It is optional and highly recommended, and it can be done seated.

Walking. Walking keeps your joints moving, lifts mood, and steadies blood sugar. As the Bones chapter explains, it needs lifting and impact alongside it for your bones.

A good old-fashioned walk without a phone call or music is simply the invitation for 30 days, and consecutive days, if possible, because it works like a medicine.

Mobility. A few minutes each morning moving shoulders, hips, and ankles through their range is joint care you can do in your kitchen.

Breath. Inhale deep, exhale long. Diaphragmatic belly breathing regulates the Nervous System, and a calmer Nervous System can turn the volume down on pain.