Have you noticed pain or swelling at the base of your thumb? Maybe it hurts when you open jars, turn keys, or even write with a pen. If that sounds like you (or someone you love), it might be something called thumb arthritis — also known as CMC osteoarthritis.
Let’s break it down so it’s easy to understand!
🧠 What Is Thumb Arthritis?
Thumb arthritis happens when the cartilage in the CMC joint (that’s the base of your thumb where it connects to your wrist) starts to wear away.
Cartilage is a smooth, rubbery material that helps your bones move without rubbing. When it breaks down, the bones start to rub against each other — and that can cause a lot of pain.
This kind of arthritis is most common in older adults, but it can also happen if you’ve had a thumb injury or use your hands a lot at work or for hobbies.
👎 What Are the Signs?
Here are some signs you might have thumb arthritis:
Pain at the bottom of your thumb
Swelling or bumps at the base of the thumb
Weak grip — things like opening a jar feel harder
A “grinding” feeling when you move your thumb
Stiffness, especially in the morning
It may start out as mild, but get worse over time.
🏠 What Can You Do to Feel Better?
The good news is — there are lots of ways to help!
✋ Try a Thumb Brace
A special brace or splint can hold your thumb in place and give it a break. This can help reduce pain and protect the joint while you’re using your hand.
Here are some I recommend to my patient’s. There are firm ones that can be used at nighttime, and soft ones during the day.
🧊 Use Ice or Heat
Cold packs can help with swelling. Warm compresses can help loosen up stiff joints. Try both and see what feels best for you.
🧴 Use a Paraffin Wax Machine
A paraffin wax bath is a warm, waxy soak for your hands that feels amazing — like a spa treatment at home! The heat helps increase blood flow and ease joint pain.
We love the Karite Paraffin Wax Machine (4000ml size). It has an auto-timer and a “keep warm” setting, making it easy to use. It comes with wax refills and gloves, so you can start right away. This is great for thumb arthritis, dry hands, and overall relaxation.
💊 Medicine
Over-the-counter pain relievers like ibuprofen (Advil) or acetaminophen (Tylenol) can help with pain and swelling. Always check with your doctor first.
🧴 Creams or Gels
There are special creams for arthritis pain that you rub right on the thumb. They can be a good option if you don’t want to take pills.
🧘♀️ Exercises
Gentle thumb stretches and hand exercises can keep your joint moving and help it stay strong. A hand therapist or your doctor can show you safe moves.
👨⚕️ When to See a Doctor
If the pain keeps getting worse, or if you can’t use your thumb for everyday things, it’s time to talk to a doctor or nurse practitioner. They might recommend:
Stronger braces or hand therapy
Cortisone shots to calm inflammation
Surgery in serious cases (but only if needed)