Muscle Tremors and Abnormal Urinalysis: When to Seek Help? - Internal Medicine

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Muscle tremors and abnormal urinalysis?


Hello Doctor, I had a routine check-up last week, and the protein test result was (+/-).
I initially thought it wasn't a big deal, but recently I've been experiencing involuntary muscle twitching all over my body, and I even had leg cramps that lasted all night.
I've also noticed that my urine has been very light in color over the past few days, including the first morning urine.
Coincidentally, I just received the yellow fever vaccine recently, and I'm wondering if there could be a connection.
Should I see a nephrologist or a neurologist? Thank you.

Xiao Lin, 20~29 year old female. Ask Date: 2024/05/25

Dr. Lin Wuxuan reply Internal Medicine


Side effects of the yellow fever vaccine may include headache, muscle pain, and mild fever, resembling cold symptoms, which typically resolve within 1 to 2 days.
It is recommended to consult your primary care physician or an internal medicine clinic at the original vaccination facility.
Thank you.

Reply Date: 2024/05/25

More Info


Hello! Thank you for reaching out with your concerns regarding muscle tremors and abnormal urinalysis. Based on the symptoms you've described, it is important to consider a comprehensive approach to your health.

Firstly, the presence of protein in your urine, even if it is only a trace amount (indicated by (+/-)), can be a sign of various conditions, ranging from benign to more serious issues. Proteinuria (the presence of excess protein in urine) can occur due to dehydration, strenuous exercise, or underlying kidney issues. Given that you are experiencing muscle tremors and cramps, it is essential to investigate these symptoms further.

Muscle tremors can be caused by a variety of factors, including electrolyte imbalances, neurological conditions, or even stress and anxiety. The fact that you are experiencing involuntary muscle movements and cramps, particularly in your thighs, raises the possibility of an underlying issue that may need to be addressed. Electrolyte imbalances, particularly low levels of potassium, magnesium, or calcium, can lead to muscle cramps and spasms. These imbalances can occur due to dehydration, dietary deficiencies, or kidney dysfunction.

Regarding your urination, the observation of very light-colored urine could indicate that you are well-hydrated, which is generally a good sign. However, if you are experiencing changes in urination patterns, such as increased frequency or urgency, or if you notice any other unusual symptoms, it would be prudent to seek medical advice.

As for the yellow fever vaccine you recently received, while vaccines can sometimes cause temporary side effects, they are unlikely to be directly related to the muscle tremors or changes in urination you are experiencing. However, it is always a good idea to inform your healthcare provider about recent vaccinations when discussing your symptoms.

In terms of which specialist to consult, both a nephrologist (kidney specialist) and a neurologist (nerve and muscle specialist) could provide valuable insights into your symptoms. Given the combination of muscle tremors and abnormal urinalysis, starting with a nephrologist may be beneficial. They can evaluate your kidney function and determine if there is any underlying renal issue contributing to your symptoms. If kidney function tests return normal, or if they identify a neurological component, a referral to a neurologist may be warranted.

In summary, I recommend scheduling an appointment with a nephrologist to assess your kidney function and discuss your symptoms in detail. They may perform additional tests, such as blood tests to check electrolyte levels and kidney function, and possibly a urinalysis to further evaluate the protein levels. Depending on their findings, they may refer you to a neurologist if necessary.

In the meantime, ensure you stay well-hydrated, maintain a balanced diet rich in essential nutrients, and monitor your symptoms closely. If you experience any worsening symptoms, such as severe muscle weakness, changes in consciousness, or significant changes in urination, seek medical attention promptly.

Take care, and I hope you find the answers and relief you need soon!

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