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Verywell Health’s content is for informational and educational purposes only. Our website salty marshmallow banana bread not intended to be a substitute for professional medical advice, diagnosis, or treatment. Lindsey Desoto is a licensed, registered dietitian and experienced medical writer.
Leah Ansell, MD, is board-certified in cosmetic and medical dermatology. She is an assistant professor at Columbia University and works in private practice in New York City. Salty skin can happen from excessive sweat production, high sodium concentrations in sweat, or certain medications. This article discusses the symptoms and potential causes of salty skin, treatment, and when you should visit a healthcare provider. Those who sweat heavily or have high concentrations of salt in their sweat may notice their skin tastes salty once their sweat dries.
People with salty skin may also notice dried white salt crystals on their skin or clothing. Salty skin is a hallmark symptom of cystic fibrosis. Those with cystic fibrosis have high salty sweat because of a dysfunction in the CFTR gene that prevents salt on the skin from being reabsorbed into the sweat glands. Heavy sweating may also lead to salty skin. During heavy sweating, the body cannot absorb all of the sodium and chloride, which can lead to salty skin. Additionally, the amount of salt in a person’s sweat can be caused by various factors such as genetics, environmental factors, and diet. If you have performed an intense physical activity that causes heavy sweating, you may notice dried salt crystals on your skin after you stop sweating.
What Medications Can Cause Salty Skin? Certain medications that cause excessive sweating can cause salty skin. Salty skin itself is generally not a cause for concern. Although diet may influence the sodium concentration in a person’s sweat, little evidence supports decreasing dietary sodium intake to prevent salty sweat. Because large amounts of sodium lost through sweat can lead to an electrolyte imbalance, treatment focuses on maintaining normal sodium levels. People with cystic fibrosis tend to sweat more than people without the condition. Our diet usually has enough salt to replace the amount lost through sweat.
However, it’s a good idea for salty sweaters to keep high salt snacks on hand and monitor for signs and symptoms of hyponatremia. Are There Tests to Diagnose the Cause of Salty Skin? A simple, painless sweat test measures the amount of salt in a person’s sweat to determine if they do or do not have cystic fibrosis. No needles are required, and it is considered the most reliable test to diagnose cystic fibrosis. During the first part of the test, a colorless, odorless chemical combined with a small amount of electrical stimulation is applied to the skin to encourage sweat production. The sweat is collected and sent to a laboratory to measure how much chloride is in the sweat.
