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Arm muscle tear treatment What a “pop” and bruising in the arm can mean, how ultrasound and MRI grade the tear, and how it heals
Arm muscle tear treatment depends on where the tear is and how severe it is. A sudden pop followed by bruising that tracks down the arm can mean a muscle strain or tear, but it can also involve a tendon, which may need a surgeon’s opinion. A physician examines the arm and may use ultrasound in the office, then order an MRI to grade the tear. When it is a muscle tear, most heal with conservative care: relative rest, protecting the arm, then gradual strengthening in physical therapy.
In the video, Ashley Marcus, MD examines a patient who felt a pop while arm wrestling professionally. There is bruising running down the arm. On diagnostic ultrasound, she points out a tear in the muscle and another area that may also be torn, notes that much of the discoloration is bruising tracking downward, and orders an MRI to see how bad the tears are. As she explains, as long as it is just a muscle tear, it can heal with conservative management. At Precision Care Medical & Sports Performance, our sports medicine team sees injuries like this at all three offices.
What a pop in the arm can mean
A sudden pop during a hard pull or lift has several possible causes, including:
- A muscle strain or partial tear, where some muscle fibers tear; see sprain vs strain
- A larger muscle tear, with a gap or a lump when you tighten the muscle
- A tendon injury near the elbow or shoulder, where muscle attaches to bone
- A bruise (contusion) without a significant tear
Bruising often spreads downward toward the elbow or forearm over a few days because blood follows gravity, so where the bruise ends up is not always where the injury is. Symptoms alone cannot tell these apart, so an exam is needed.
How ultrasound and MRI help
An in-office ultrasound lets the physician see the muscle while it moves and compare it with the other arm. When the tear needs to be measured, or a tendon injury has to be ruled out, the physician orders an MRI. The result helps decide whether conservative care is enough or whether a surgeon should weigh in, which is more likely with some complete tendon tears. See elbow, wrist and hand pain and shoulder pain treatment for injuries near the joints.
Arm muscle tear treatment and recovery
- First days: relative rest, ice and gentle compression, and pain relief your physician recommends
- Protected motion: gentle range of motion as pain allows, so the arm does not stiffen
- Physical therapy: gradual strengthening, then sport-specific loading; see strength training after injury
- Return to sport: only when strength and grip are close to the other side; see sports injury recovery
Mild strains often feel better in a few weeks, while larger tears can take a few months. Physical therapy is offered at our Brooklyn and Staten Island offices.
When to get seen quickly
Get checked promptly if you see a new bulge or dent in the arm, cannot bend or turn the forearm with normal strength, or have numbness. Severe swelling with tight, shiny skin or pain that keeps rising needs emergency care.
Related care at Precision Care Medical & Sports Performance
Sports injury doctor near you
Looking for a sports injury doctor near me for an arm injury? Precision Care Medical & Sports Performance sees patients at three offices. Ashley Marcus, MD, who appears in the video, practices at our Brooklyn office on Shell Rd, close to Bath Beach, Midwood and Kings Highway. Jake Stephen, DO sees patients at our Staten Island office on Richmond Rd, near Grasmere, Concord and Castleton Corners.
Yuri Gordin, MD practices at the Precision Care Spine & Pain Center in Midtown Manhattan, convenient to the Upper East Side and Spanish Harlem. Rehab with our physical therapists is offered in Brooklyn and Staten Island. Request an appointment or call the office closest to you.
150 E 55th St, Suite 401, New York, NY 10022
(212) 840-0135
Questions patients ask
How do I know if I tore a muscle in my arm?
A sudden pop, sharp pain, swelling, bruising and weakness can point to a tear, but a strain, tendon injury or bruise can feel similar. An exam, and sometimes ultrasound or an MRI, tells them apart.
Why is the bruise lower than where it hurts?
Blood from the injury follows gravity, so bruising often spreads toward the elbow or forearm over a few days.
Do arm muscle tears need surgery?
Most muscle tears heal with conservative care. Some complete tendon tears may need a surgeon’s opinion, which is one reason imaging is ordered.
How long does a torn arm muscle take to heal?
Mild strains often improve in a few weeks; larger tears can take a few months. Your timeline depends on the size of the tear and your sport.
When can I go back to lifting or arm wrestling?
When pain has settled and your strength and grip are close to the other side. Your physician or therapist tests this before clearing you.
Where can I see a sports injury doctor near me?
Precision Care Medical & Sports Performance sees sports injuries at three offices:
- Brooklyn2781 Shell Rd, Suite 101, Brooklyn, NY 11223(718) 648-1234 · Get directions
- Staten Island1630 Richmond Rd, Suite 101, Staten Island, NY 10304(718) 339-7100 · Get directions
- Midtown Manhattan150 E 55th St, Suite 401, New York, NY 10022(212) 840-0135 · Get directions
Physical therapy is offered in Brooklyn and Staten Island.
Educational only, not medical advice. These videos and this article explain common problems and treatments in general terms. They are not a diagnosis or a treatment plan for you. Results vary from person to person. See a qualified clinician about your own symptoms, and call 911 or go to an emergency room for an emergency.
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