Hands and fingers swell easily for a simple reason: they are the furthest out and the furthest down, the skin on the back of the hand is loose, and the fluid that leaks out of the small blood vessels into the tissue has to be cleared by the lymphatic system, which in the arm runs upwards, towards the armpit, with no pump other than the muscles. Anything that makes more fluid leak out (heat, salt, hormones, inflammation, pregnancy) or less come back (stillness, hanging arms, tight sleeves or watches, damaged lymph vessels) gives swollen hands. That is why the hands are swollen in the morning after a night with the hands under the pillow, after an hour's walk with the arms hanging and swinging, in a heatwave, after a pizza, in the days before a period and often throughout pregnancy. All of that is harmless and goes down when the muscle pump and the lymph catch up. What differs is swelling that sits in the joints themselves (fingers swollen like spindles, stiff and tender in the morning for over half an hour) – that is arthritis, most often rheumatoid arthritis or psoriatic arthritis, which should see a doctor soon; swelling in only one hand and arm that doesn't go down overnight, especially after breast cancer treatment – that is lymphoedema; and a swollen feeling with numbness in the thumb, index and middle finger at night – that is carpal tunnel syndrome. Swelling that comes suddenly in one hand with pain, redness and heat belongs in urgent care (infection, blood clot). Here is what to do about each kind.
Why the hands swell: the causes one by one
| When and how | Likely cause | What helps |
|---|---|---|
| In the morning, both hands, goes down within an hour | Fluid that collected overnight while the hands lay still, under the pillow or under the body; more common with age, in heat and after a salty evening meal. If the fingers are also stiff for over 30 minutes: suspect arthritis. | Clench and stretch the hands 20 times before getting up, arms overhead, cold shower over the forearms. Sleep with the hands free, not under the pillow. |
| In the heat, in the sun, in the sauna | The blood vessels dilate to cool the body, more fluid leaks out, the lymph can't keep up. | Cooling, water, arms up, take the rings off in advance on hot days. |
| When walking, running or hiking | The arms hang and swing, blood is pumped out into the hands by the movement while the return flow is poorer than in the legs; common and harmless, sometimes called "hiker's hands". | Clench the hands every five minutes, hold the backpack straps or poles, swing actively, a while with the arms overhead. |
| After high-pulse exercise, strength training | Increased blood flow and lactate in the muscles draw in fluid; the swelling in forearms and hands goes down within an hour. | Cool-down with the arms moving, light cupping of the forearms afterwards. |
| After salty food, alcohol, little sleep | The body holds on to water to dilute the salt; lasts one to two days. | Water, potassium (vegetables, fruit), less salt for a few days. |
| In the days before a period, on the pill, in menopause | Oestrogen and progesterone make the body retain fluid. See menopause. | Less salt and sugar that week, movement, lymphatic massage. |
| Pregnant, especially the last third | More blood volume and fluid, hormones that soften the vessels; hands, face and feet swell. Sudden swelling of face and hands with headache: call your midwife the same day (pre-eclampsia). See swollen feet in pregnancy. | Arms raised, movement, water, blood pressure checks as your midwife advises. |
| Swollen, stiff, tender finger joints in the morning, over 30 minutes, often symmetrical | Arthritis: rheumatoid arthritis (knuckles and middle joints), psoriatic arthritis ("sausage fingers"), osteoarthritis (end joints, nodes). See rheumatism and hand osteoarthritis. | Your doctor within weeks: blood tests, referral. Early treatment decides how the hands feel in ten years. |
| Numbness and a swollen feeling in the thumb, index and middle finger, worst at night and in the morning | Carpal tunnel syndrome: the nerve is compressed in the wrist; the hand feels swollen without always being so. See carpal tunnel syndrome. | Night splint, wrist exercises, your doctor if it doesn't settle in a few weeks. |
| One hand and arm swollen, heavy, doesn't go down overnight, often after breast cancer treatment or surgery in the armpit | Lymphoedema: the lymph vessels damaged or removed. See lymphoedema. | Lymphoedema therapist, compression sleeve, daily self-lymphatic massage. No cupping with suction on that arm without your therapist's go-ahead. |
| Sudden swelling in one hand or arm with pain, heat, redness or a bluish colour | Infection or blood clot in the arm (uncommon but it happens, e.g. after a catheter or hard training). | Urgent care the same day. |
| Both hands, feet and face swollen, for some time, with tiredness and breathlessness | Heart, kidneys, liver or thyroid not coping with fluid balance; some medicines (calcium-channel blood pressure drugs, cortisone, anti-inflammatories, some diabetes drugs). | Your doctor: blood tests, urine test, medication review. See fluid retention in the body. |
When to seek care for swollen hands
- Urgently, the same day: sudden swelling in one hand or arm with pain, heat, redness or discolouration; swelling after a blow or fall where you can't move the fingers normally; swollen hands with swollen lips, tongue or difficulty breathing (allergic reaction); pregnant with suddenly swollen hands and face, headache or visual disturbance.
- Your doctor within one to two weeks: swollen and stiff finger joints in the morning for over 30 minutes for more than a couple of weeks; swelling in only one hand and arm that doesn't go down overnight; numbness in the fingers at night for more than a few weeks; swelling in both hands and feet that persists and that you don't recognise; swelling that began after a new medicine.
- Self-care is enough: swelling in the morning, in heat, on walks and after salty food, which goes down within an hour or a day, without joint stiffness or numbness.
What helps swollen hands and fingers
- The muscle pump. Clench the hands hard and then spread the fingers, 20 times; "play the piano" in the air; roll the wrists. Do it in the morning in bed, every five minutes on a walk and after every hour at the computer. It is the most effective measure and costs nothing.
- Elevation. Arms overhead for a minute, hands on the head when walking, the arm on a pillow when sitting. Fluid follows gravity back towards the trunk.
- Cooling. Cold water over the forearms and hands for 30 seconds constricts the vessels. Avoid hot water, sauna and sun on the hands on the days they are most swollen.
- Less salt and enough water. Drinking too little makes the body hold on to fluid harder. Potassium from vegetables and fruit balances the salt.
- Nothing that constricts. Take off rings, watches and bracelets on hot days and before exercise; a ring stuck on a swollen finger comes off with thread or soap and cold water, not force (see below).
- Lymphatic massage from the fingers towards the armpit. The lymph of the arm drains into the nodes in the armpit. So start by "opening" the armpit: press gently with the palm in the armpit ten times. Then stroke with light pressure, like stroking a cat, from the upper arm towards the armpit, from the elbow towards the upper arm, from the wrist towards the elbow, and last from the fingertips over the back of the hand towards the wrist. Always towards the armpit, always light: the lymph vessels lie directly under the skin and are squeezed shut if you press hard. Five minutes per arm, morning and evening, makes a clear difference in a few days. The whole technique in lymphatic massage at home and how the system works in the lymphatic system.
- Cupping of forearm and upper arm. See the next section.
- Move the whole body. Walking with active arms, swimming (the water pressure pushes fluid back) and strength training for arms and shoulders improve the return flow over time. See swollen legs and feet for the same principle in the legs.
- Treat the cause when it is arthritis, carpal tunnel or lymphoedema: then self-care is a complement, not a replacement.
Cupping for swollen hands and fingers
Cupping with light suction works like an enhanced lymphatic massage: the cup lifts the skin and the superficial tissue where the lymph vessels lie, and when you glide the cup in the right direction the fluid follows. How to: sit with the arm resting on a table, oil the forearm and upper arm. Use the dynamic mini cup on the forearm and back of the hand and the dynamic cup on the upper arm, with the lightest possible suction: the skin should barely lift, no redness afterwards. Start from the top: ten strokes from the elbow towards the armpit on the inside and outside of the upper arm, then ten strokes from the wrist towards the elbow on the inside and top of the forearm, finally a few very light strokes over the back of the hand from the knuckles towards the wrist. Always towards the armpit, never back and forth. Finish with fist pumps and the arm raised for a minute. Five minutes per arm, morning or evening, on the days the hands are swollen. Don't cup over the fingers or joints themselves, not over skin that is tender, warm, red or broken, not on an arm with lymphoedema without the go-ahead from your lymphoedema therapist, and not with strong suction: that gives bruises and stops the flow instead of increasing it. With arthritis, cupping of the forearm muscles is often pleasant between flares, but never over an inflamed joint. More on the lymph and cupping in lymphatic health with cupping.
The ring is stuck: how to get it off
Hold the hand above the head for a minute and cool the finger in cold water, lubricate with soap, oil or hand cream and twist the ring off with small movements. If it still won't move: wind a thread or dental floss tightly around the finger from the ring outwards over the joint, thread the end under the ring and unwind the thread from the ring side, so the ring is pushed ahead of the thread over the joint. If the finger turns blue, cold, numb or very painful: urgent care or the fire service cuts the ring in a few minutes, and that is better than a damaged finger.
Read more
Fluid retention in the body, lymphatic massage at home, numbness and tingling in the hands, hand pain: where does it hurt, rheumatism and joint pain, lymphoedema, swollen lymph nodes and cupping – the complete guide.
Frequently asked questions
Why are my hands swollen in the morning?
Because they have lain still for eight hours, often under the pillow or the body, so the fluid in the tissue hasn't been pumped back; a warm bedroom, a salty evening meal, alcohol, the days before a period and increasing age add to it. Clench and stretch the hands 20 times and hold the arms overhead before getting up, and it is gone within an hour. If the fingers are also stiff and tender in the joints for over 30 minutes every morning, see a doctor: that is a sign of arthritis, not just fluid.
Why do my hands swell when I walk or hike?
The arms hang and swing, the movement increases blood flow out into the hands while the return flow up towards the armpit is poorer than in the legs, and in heat the vessels dilate as well. It is harmless and goes down within an hour. Clench the hands every five minutes, hold the backpack straps or use poles, and stretch the arms overhead for a while. Take the rings off before a long hike on a hot day.
Can swollen fingers be rheumatism?
Yes, if the swelling sits in the joints themselves: knuckles and middle joints that are spindle-shaped, stiff for over 30 minutes in the morning, tender when pressed, often in both hands, sometimes with tiredness. Psoriatic arthritis makes whole fingers swell like sausages. Osteoarthritis gives hard nodes on the end joints and stiffness that eases faster. Book your doctor within a couple of weeks; early treatment of rheumatoid arthritis decides how the joints fare long term.
Does lymphatic massage help swollen hands?
Yes, for swelling caused by fluid: stroke lightly, like stroking a cat, from the fingers over the back of the hand towards the wrist, from the wrist towards the elbow and from the upper arm towards the armpit, always in the direction of the armpit, after first pressing gently in the armpit ten times. Five minutes per arm, morning and evening. With lymphoedema after breast cancer: learn the technique from a lymphoedema therapist first.
Does cupping help swollen hands and fingers?
Yes, as an enhanced lymphatic massage: glide a small cup with the lightest suction from the elbow towards the armpit, then from the wrist towards the elbow and finally very lightly over the back of the hand towards the wrist, always towards the armpit, five minutes per arm. Don't cup over the fingers or joints, not over tender, red or broken skin, not with strong suction, and not on an arm with lymphoedema without a go-ahead from a lymphoedema therapist.
Written by Curam. Last updated 17 October 2026. This is general self-care information and does not replace medical care. For sudden, severe or unusual symptoms, contact your doctor. Talk to your doctor before cupping if you are pregnant, take blood thinners or have a condition affecting skin, blood vessels or blood.
