Normal swelling versus warning signs

Swelling in the first two to three weeks after hip replacement is expected and usually not a reason to call your surgeon. Your body is healing from a major surgical wound, and fluid naturally collects in the tissue around the incision and joint. This swelling typically peaks around day three to five, then gradually decreases over weeks and months.

You should contact your surgeon or go to the emergency room if the swelling is accompanied by increased warmth, severe redness that spreads beyond the incision, fever above 101°F, drainage from the wound that is thick or discolored, or if the swelling suddenly gets worse instead of better after improving for several days. These signs can indicate infection, blood clots, or other complications that need when ready attention.

Swelling that stays mild and improves steadily, even if it takes several months to fully resolve, is part of normal recovery. Many people still have some puffiness in the hip and thigh six months after surgery.

Key Takeaways

  • Mild to moderate swelling in the first two to three weeks is normal and expected after hip replacement surgery.
  • Fever, spreading redness, thick or colored drainage, or sudden worsening of swelling are signs of infection and require when ready medical attention.
  • Warmth around the incision combined with swelling, calf pain, or shortness of breath may signal a blood clot and need emergency care.
  • Elevation, ice, and compression with an elastic bandage are standard ways to manage normal post-surgery swelling at home.
  • Swelling that improves steadily over weeks and months, even if it persists for six months or longer, is typical and not a cause for concern.

Signs of infection you should not ignore

Infection at the surgical site is rare but serious. Watch for fever of 101°F or higher, especially if it appears more than a few days after surgery. Redness that spreads outward from the incision, warmth that extends beyond the when ready wound area, or swelling that gets worse instead of better after day five are all red flags.

Drainage from the incision that is thick, yellow, green, or foul-smelling is different from the light seeping that can occur in the first day or two. If you see this kind of drainage, or if the incision opens up or pulls apart, call your surgeon right away or go to the emergency room. Do not wait to see if it improves on its own.

Blood clots and swelling in one leg

Swelling that is much worse in one leg than the other, especially if it appears suddenly or is accompanied by calf pain, warmth, or redness in the calf, can be a sign of a blood clot. This is a serious condition that requires emergency care. Go to the emergency room or call 911 if you also have chest pain, shortness of breath, or a rapid heartbeat.

Blood clots are more common in the first two weeks after hip replacement, but they can form later. Your surgeon may have prescribed a blood thinner to reduce this risk. Take it exactly as directed, even if you feel fine. If you miss a dose or have questions about your medication, contact your surgeon's office before your next dose.

Managing normal swelling at home

Elevation is the most effective tool for reducing normal post-surgery swelling. Lie down with your hip and leg raised on pillows so that your knee is higher than your hip and your hip is higher than your heart. Do this for 20 to 30 minutes several times a day, especially in the first few weeks.

Ice applied to the swollen area for 15 to 20 minutes at a time, several times a day, also helps reduce swelling and pain. Wrap the ice pack in a thin cloth so it does not touch your skin directly. An elastic compression bandage or compression sleeve can help too, but make sure it is not so tight that it cuts off circulation or causes numbness or tingling.

Continue taking pain medication as prescribed by your surgeon. Pain and swelling are connected — when you are in pain, you tend to move less, which allows fluid to pool. Staying active within the limits your physical therapist sets helps pump fluid out of the tissue and back into your bloodstream.

When swelling lasts longer than expected

Some people have swelling that persists for three, four, or even six months after surgery. This is frustrating but not necessarily abnormal. Factors like your age, overall health, how much you move around, and how much you elevate your leg all affect how quickly swelling goes away.

If swelling is not improving at all after three weeks, or if it gets worse after improving, mention it at your follow-up appointment with your surgeon. They may want to check for complications like a seroma (a pocket of fluid) or a hematoma (a collection of blood). In most cases, these resolve on their own with time and elevation, but your surgeon needs to rule out infection or other problems first.

Wearing compression stockings or sleeves during the day and continuing elevation at night can speed recovery. Some surgeons recommend continuing ice and elevation for several months if swelling is slow to resolve.

Swelling and your physical therapy progress

Swelling can make it harder to bend and straighten your hip during physical therapy. If swelling is severe, your therapist may adjust your exercises or recommend more ice and elevation before your session. Do not push through severe swelling to do exercises — it can slow healing and make swelling worse.

As swelling decreases, your range of motion usually improves. If you notice that your swelling is going down but your range of motion is not improving, or if you have new pain with movement, tell your physical therapist or surgeon. These can be signs of stiffness or scar tissue that needs attention.

Frequently Asked Questions

How much swelling is too much after hip replacement?

Mild to moderate swelling that you can see and feel but that does not prevent you from doing your exercises is normal. Severe swelling that makes your leg feel tight, causes numbness or tingling, or prevents you from bending your knee should be reported to your surgeon. Swelling that is much worse in one leg than the other also warrants a call to your surgeon to rule out a blood clot.

Can I take over-the-counter pain relievers to reduce swelling?

Ask your surgeon before taking any over-the-counter medication, including ibuprofen or naproxen. Some pain relievers can interfere with blood thinners or affect healing. Your surgeon will tell you what is safe to take and in what dose. Elevation and ice are usually the first line of treatment for normal swelling.

Is it normal to have swelling six months after hip replacement?

Yes, some swelling at six months is not unusual, especially if you are on your feet a lot or have not been elevating your leg regularly. However, by six months the swelling should be noticeably less than it was in the first few weeks. If swelling is the same or worse at six months, or if it is accompanied by pain or warmth, contact your surgeon.

What should I do if swelling suddenly gets worse after improving?

Sudden worsening of swelling after it has been improving can signal infection, a blood clot, or another complication. Call your surgeon right away or go to the emergency room, especially if the swelling is accompanied by fever, redness, warmth, calf pain, or shortness of breath. Do not wait to see if it improves on its own.

Can compression socks help with swelling after hip replacement?

Yes, compression stockings or sleeves can help reduce swelling, especially if you are on your feet during the day. Make sure they fit properly — too tight and they can cut off circulation; too loose and they will not help. Ask your surgeon or physical therapist for a recommendation on compression level and how long to wear them each day.