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Turlock, CA
A 23-year-old female asked:

what are the symptoms of neurogenic atrophy in thenar muscle from nerve injury?

2 doctor answers3 doctors weighed in
Dr. Adam Lewis
Neurosurgery 35 years experience
Thenar atrophy: The thenar muscles are at the base of the thumb. Normally they are rounded and when there is atrophy the thenar eminence becomes flat. The thenar muscles are used to perform fine motor movements between the thumb and fingers such as picking up a coin, buttoning a shirt, or turning a key. The most common condition is carpal tunnel syndrome. See a neurologist for evaluation.
Dr. Olav Jaren
Neurology 19 years experience
Thenar atrophy: Thenar muscle weakness results in thumb abduction weakness. This movement is holding the thumb straight up when the back of your hand is turned down (not shown in the picture). It should be able to overcome some resistance to adopt this position. You may also see a dimple in the muscle area at the base of your thumb.

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Similar questions

A 21-year-old member asked:

Why did my doctor prescribe muscle relaxants? I need pain relief!

2 doctor answers5 doctors weighed in
Dr. Stephen Perret
Child Psychiatry 15 years experience
Pain is complicated!: There are several types of pain including nerve pain and muscle pain. Although they often feel the same to a patient, a doctor knows that trying to clarify the type of pain often points to a more helpful solution. Muscle relaxants are often more effective than pain killers and so can be more appropriate for certain types of pain.
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Should contacts be worn after retina laser in both eyes for retina tears after head injury?

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No problem: After you heal from laser retinopexy (repair) fully, there should be no problem with using contact lenses again.
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A 24-year-old member asked:

Does vitamin B12 deficiency cause brain and nerve problems?

2 doctor answers4 doctors weighed in
Dr. Carla Enriquez
Pediatrics 50 years experience
Yes: In the early 19th century, scientists noted weakness and numbness with B12 deficiency. Recently, B12 has been shown to upregulate neurotrophic factors (chemicals [cytokines] that help nerve cells grow) & downregulate neurotoxic factors (chemicals that break down nerve cells). In other words, B12 helps nerve cells grow and prevents their destruction by naturally occurring brain chemicals.
A 52-year-old member asked:

What is the best steroid to heal a ucl hand injury and atrophied thumb muscle?

2 doctor answers5 doctors weighed in
Dr. Joel McClurg
Specializes in Orthopedic Surgery
Won't work: While steroid injection may help with the symptoms of an ulnar collateral ligament injury they will not facilitate healing or improve outcome. High grade acute ucl injuries usually require repair, while chronic high grade injuries usually require reconstructions for joint stabilization. Rehabilitation after repair or reconstruction will usually help reverse muscle atrophy.
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A 27-year-old member asked:

How can I reduce swelling on side of the eye injury for my son?

2 doctor answers3 doctors weighed in
Dr. Robert Chang
Specializes in Ophthalmology
Cold compresses: Not sure the eye injury, but should have it checked out. If it's just tissue edema, then resting, time, cold compresses will help it reabsorb (as long as no underlying medical problems).

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Last updated Sep 28, 2016
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