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Every page here comes from the clinical unit that handles the condition — not from a content desk. Read what a diagnosis means, what a treatment involves and what to expect afterwards, in plain language.

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2,309 results

Parkinson Disease

Parkinson disease is a slowly progressive brain condition in which nerve cells that produce dopamine gradually die, causing tremor, slowness…

  • 12 doctors
  • 7 answers

Parkinson’s Disease

Parkinson’s disease is a progressive neurological disorder that affects movement, often causing tremor, stiffness, slowed movement, and balance problems. Treatment…

  • 12 doctors

Paroxysmal Nocturnal Hemoglobinuria

Paroxysmal nocturnal hemoglobinuria (PNH) is a rare acquired blood disorder in which red blood cells lack protective surface proteins and…

  • 7 answers

Patellar Dislocation

Patellar dislocation is when the kneecap moves out of its normal groove, usually causing sudden pain, swelling, and difficulty bending…

  • 12 doctors
  • 7 answers

Patellar Tendinitis

Patellar tendinitis is an overuse injury that causes pain and inflammation in the tendon connecting the kneecap to the shinbone,…

  • 12 doctors

Patellofemoral Pain Syndrome

Patellofemoral pain syndrome is pain around or behind the kneecap caused by irritation where the patella moves over the thigh…

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Patent Ductus Arteriosus

Patent ductus arteriosus (PDA) is a heart condition in which a blood vessel that normally closes shortly after birth stays…

  • 7 answers

Patent Foramen Ovale

Patent foramen ovale is a small opening between the upper chambers of the heart that remains after birth in some…

  • 12 doctors
  • 7 answers
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