If you suffer from hyperhidrosis, you understand the feelings of embarrassment, frustration and stress that come with uncontrollable sweating. You might feel alone and confused about what caused hyperhidrosis. But excessive sweating is actually fairly common. Nearly 5 percent of the population has hyperhidrosis — and thousands more live undiagnosed.

Hyperhidrosis is a medical condition, but sometimes excessive sweating is rooted in another serious medical issue. Let’s break down the causes of two conditions: primary hyperhidrosis and secondary hyperhidrosis.

What Causes Primary Hyperhidrosis?

Primary hyperhidrosis is a medical condition, causing you to sweat up to five times the amount that's necessary to regulate body temperature.

People with primary hyperhidrosis sweat from a specific type of sweat gland called eccrine sweat glands. These glands make up the majority of the 2-4 million sweat glands in your body and are concentrated in the armpits, face, feet and palms.

Learn more about excessive underarm sweat.

When you have primary hyperhidrosis, everyday activities can cause your eccrine sweat glands to overreact. Moving around, overheating or feeling emotional can activate your sweat glands. In some cases, simply thinking about a stressful situation can trigger sweating excessively.

Doctors aren’t sure exactly what causes primary hyperhidrosis, but some evidence shows it’s hereditary. Any healthy person can suffer from hyperhidrosis, especially if it runs in the family. Most people start seeing symptom during puberty or even childhood, but sometimes symptoms don’t appear until early adulthood.

Learn more about teen sweating.

What Causes Secondary Hyperhidrosis?

People with secondary hyperhidrosis sweat excessively all over their body, not just one area. Secondary hyperhidrosis is also more likely to cause sweating during sleep.

Unlike primary hyperhidrosis, secondary hyperhidrosis is a side effect of a medication or other medical condition. Here are some potential secondary hyperhidrosis causes:

  • Diabetes
  • Obesity
  • Menopause
  • Overactive thyroid (hyperthyroidism)

If you think you might have secondary hyperhidrosis, it’s best to consult with your doctor to identify the underlying condition that's causing you to sweat.

How to Live Worry-Free With Hyperhidrosis

With hyperhidrosis, constantly stressing about sweat and trying to hide sweat marks is a daily struggle. You might avoid social situations or stay in the shadows at work instead off fulfilling your career goals.

Most people with primary hyperhidrosis experience profuse underarm sweating, known as axillary hyperhidrosis. While no cure exists for axillary hyperhidrosis, there are some solutions that can minimize the effects. Here are some common solutions:

Before you decide to shell out a ton of cash on medications or surgery, we highly recommend trying a more non-invasive treatment first.

Read our complete list of axillary hyperhidrosis treatments.

Say Goodbye to Sweat Marks for Good

The best way to fight hyperhidrosis is by wearing a sweat proof undershirt. The Thompson Tee is the only patented sweat proof undershirt guaranteed to block sweat from seeping through your dress shirts and outerwear.

Say goodbye to pit stains with the Thompson Tee

Our patented Hydro-Shield sweat proof technology absorbs moisture and allows it to evaporate rather than soak through to your outer layer, keeping you sweat mark-free all day long.

Try a Thompson Tee risk free today!