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why does it hurt when I bend my knee

A 24-year-old female asked:
Dr. Tso Chen
Dr. Tso Chen answered
15 years experience Internal Medicine
Probably weak quads: People with weak quadriceps tend to have problems with knee. The quadriceps are the groups of muscle on top of the thighs. It's known that regular ... Read More
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A 28-year-old male asked:
Dr. Bruce Rothschild
47 years experience Rheumatology
Many causes,but: Many possibilities. Often related to knee instability. Have knee medial-lateral stability checked. Then ? Rheumatologist or orthopedic surgeon.
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A 41-year-old male asked:
Dr. Bertrand Kaper
28 years experience Orthopedic Reconstructive Surgery
Chondromalacia: Painful grinding of the knees with bending is usually a sign of a condition known as patellar chondromalacia. This refers to an irregular or rough ca ... Read More
A 51-year-old member asked:
Dr. Amir Khan
Dr. Amir Khan answered
26 years experience Sports Medicine
Likely knee cap wear: The most common and likely cause of pain in front of the knee is an irritated or early wear of the knee cap cartilage or the surface cartilage of the ... Read More
A 45-year-old member asked:
Dr. David Abrutyn
21 years experience Orthopedic Surgery
Patella: Was there trauma? If not, could be from mild arthritis behind your knee cap; also could be from tight muscles, around knee (ie quadriceps, hip flexors ... Read More
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A 52-year-old member asked:
Dr. Ken Deck
Dr. Ken Deck answered
47 years experience General Surgery
Ligament: Extending will stretch the ligaments where bending does not. Should see either ortho or local urgernt care or regular doctor.
A female asked:
Dr. Keshab Paudel
18 years experience Internal Medicine
It depends: We need to establish the diagnosis before treating. Doctor will run some blood tests and x-rays before jumping on to the medications. I would recommen ... Read More
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A member asked:
Dr. Ahmad M Hadied
48 years experience Orthopedic Surgery
Arthritis: This means that the knee cap and the thigh bone are not smooth like they suppose to, early stage of arthritis.
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A 23-year-old male asked:
Dr. Marsha Davis
27 years experience Internal Medicine
It will: Be stiff and sore when you bend it for a while.
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A 25-year-old female asked:
Dr. Hirenkumar Italia
13 years experience Urgent Care
Knee pain: Any injury or trauma? Seems to be Patellar tendon problem. But needs physical exam to rule out ACL or PCL injury.
3
3 thanks

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