Persistent Bruise and Hard Lump After Car Accident: Treatment Options - Orthopedics

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Bruising and swelling after a car accident?


Hello, doctor.
After a car accident, I had a large bruise on the side of my right knee.
A few weeks later, it turned yellow and some of it faded, but there is still a grayish-black area that hasn't disappeared.
When I press on it, I can clearly feel a hard lump underneath, and pressing it causes pain.
Sometimes, if I stand for a long time, I also experience sharp pain.
It has been over seven months since the injury, and I initially thought it would resolve on its own, but the lump has persisted.
If it didn't hurt, it would be fine, but pressing on it is painful, and when I turn over in my sleep and press on that side, it also hurts.
Occasionally, I experience sudden sharp pain even without touching it.
I would like to ask if this can be treated.
Could it be due to muscle fibrosis or a hematoma that hasn't resolved? Which specialty should I consult for a definitive treatment? Thank you for your response!

Niming, 20~29 year old female. Ask Date: 2018/02/28

Dr. Li Yongheng reply Orthopedics


Hello, based on your symptoms, muscle fibrosis or calcification is possible.
It is recommended that you apply local heat, and even if there is pain, you should continue with gentle massage.
If necessary, a low-dose corticosteroid injection can be administered locally to treat the inflammatory response.
Wishing you a speedy recovery.

Reply Date: 2018/02/28

More Info


After a car accident, persistent bruising and the development of a hard lump can be concerning symptoms that warrant further evaluation and treatment. Given your description of the injury to your right knee, it sounds like you may be dealing with a few potential issues, including a hematoma (a localized collection of blood outside of blood vessels), muscle fiber damage, or even scar tissue formation.

When bruising occurs, it is typically due to trauma that causes blood vessels to rupture, leading to bleeding under the skin. Initially, this appears as a red or purple mark, which can change color as the blood is broken down and reabsorbed by the body. However, if a bruise persists for an extended period, especially if it is accompanied by a hard lump and pain upon pressure, it may indicate that the blood has pooled and formed a hematoma. Hematomas can take weeks or even months to resolve, depending on their size and the body's ability to reabsorb the blood.

The hard lump you are feeling could also be a result of muscle fiber damage or fibrosis, which occurs when muscle tissue is injured and subsequently heals with scar tissue. This scar tissue can sometimes be denser than the surrounding tissue, leading to a palpable lump that may be painful or tender to the touch. Additionally, if the area has not been used properly during the healing process, it could lead to stiffness and discomfort.

In terms of treatment options, it is essential to consult with a healthcare professional who can provide a thorough evaluation. Here are some steps you might consider:
1. Consult a Specialist: Given the nature of your symptoms, it would be advisable to see an orthopedic specialist. They can perform a physical examination and may recommend imaging studies, such as an ultrasound or MRI, to assess the extent of the injury and determine the nature of the hard lump.

2. Physical Therapy: If the lump is due to muscle damage or scar tissue, physical therapy may be beneficial. A physical therapist can guide you through exercises that promote healing, improve range of motion, and reduce pain. They may also use modalities such as ultrasound therapy or massage to help break down scar tissue.

3. Pain Management: Over-the-counter pain relievers, such as ibuprofen or acetaminophen, can help manage pain and inflammation. However, it is essential to follow the recommended dosages and consult with a healthcare provider if you have any underlying health conditions.

4. Monitoring: If the lump does not improve or if symptoms worsen, further intervention may be necessary. In some cases, if a hematoma is large and painful, a healthcare provider may consider draining it to relieve pressure and promote healing.

5. Rest and Activity Modification: Avoiding activities that exacerbate the pain is crucial. Gradually reintroducing movement and strengthening exercises as tolerated can help restore function and reduce discomfort.

In conclusion, while it is possible that the hard lump and persistent pain are due to muscle fiber damage or an unresolved hematoma, a definitive diagnosis can only be made through a clinical evaluation. Seeking the advice of an orthopedic specialist is the best course of action to ensure appropriate treatment and management of your symptoms. Remember, early intervention can often lead to better outcomes, so do not hesitate to seek medical attention.

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