The bottom line
There are many causes of hand pain, such as injury, overuse, and medical conditions such as rheumatoid arthritis and carpal tunnel syndrome. The most common medical causes are presented in this article, but perhaps the most common is a temporary muscle ache after squeezing or forcing your grip.
In any case, if you’re dealing with hand pain, be sure to see a doctor to find out the cause and get the treatment you need. The diagnosis of hand pain should consider additional symptoms, risk factors, and other aspects that should be individualized and warrant the attention of a healthcare professional.