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What are some causes of bubbles in the urine?

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Pregnancy, mild dehydration, rapid urination, kidney disease and urinary tract infections can result in bubbles in the urine. Frothy urine is also caused by proteinuria, a condition that allows high amounts of protein to pass through the kidneys' filters, according to Mayo Clinic. Proteinuria results because of ingesting excess protein supplements or an underlying health condition.

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Pregnancy causes mild enlargement of kidneys and an increase in amino acids, leading to frothy urine. Concentrated urine results from dehydration, leading to bubbles in the urine, according to Fast Med. Frothy urine can also result because of rapid urination or when urine mixes with cleaning chemicals retained in the toilet bowl.

High blood pressure, diabetes, rheumatoid arthritis or serious kidney problems can lead to proteinuria, causing bubbles in urine. According to Diabetic Connect, this is a sign that the glomeruli of the kidneys are diseased and are allowing proteins to pass through unchecked. Cold exposure, fever, emotional stress, strenuous exercise and heat exposure are some nonchronic causes of proteinuria.

Diabetes, heart disease, hypertension, chronic kidney disease and cancer are serious conditions that can also result in proteinuria leading to bubbles in the urine, according to Mayo Clinic. When bubbles in urine are caused by excess protein, the risk of kidney failure and long-term damage to the filtering capacity of the kidneys is high.

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