Does Drinking Water Help Sexually?

Mike Bohl, MD, MPH, ALM

Reviewed by Mike Bohl, MD

Written by Geoffrey C. Whittaker

Published 04/04/2023

Updated 04/16/2024

Does drinking water make you last longer in bed? The short answer: It’s possible.

Is drinking water essential for sexual performance, erectile function and orgasms? Another short answer: Yes.

Water is an essential part of your overall health, regardless of what bodily function you’re performing.

Not getting enough fluids can weaken the body’s ability to function at peak performance, so it makes sense that some people wonder whether dehydration can cause ED. Luckily, drinking water is a pretty easy thing to do. We suggest grabbing some while you dig into the details about how the amount of water you consume can affect your intimacy, wellbeing and everything else.

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So, what does drinking water have to do with getting an erection? Well, everything. Water is essential for proper blood flow and proper signaling between your brain and reproductive organs, and water supports libido and hormone activity essential to erections. It may not be the cure, but it’s an essential requirement for healthy erections and great sex.

When you get aroused, your brain sends a signal to the blood vessels in your penis, which increases blood flow. Your blood then rushes into the corpora cavernosa (two long chambers in the shaft), which causes an erection.

If your body isn't functioning correctly, getting an erection can become much more difficult. If you haven’t had enough water and your hydration levels are low, it may impact your bodily functions.

Water plays an essential role in erections, but it is also essential for:

  • Natural lubrication and preventing vaginal dryness

  • Ejaculation

  • Blood volume

  • Blood pressure

  • Regulating body temperature

  • Preventing urinary tract infections

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Does drinking water help with erectile dysfunction? It can — if you’re dehydrated.

Staying hydrated by drinking water helps keep your blood and plasma volume high. You need these levels not to be too low to get an erection.

Even if you can get an erection, dehydration may cause you to experience certain symptoms that impact your sexual health and make it tough to get in the mood. These symptoms may include:

  • Headaches

  • Fatigue

  • Low or inconsistent energy levels

  • Dizziness

  • Dry mouth

  • Constipation

  • Chills

  • Crankiness

  • Confusion

  • Anxiousness

When you drink enough water and are fully hydrated, you don’t have to worry about these dehydration symptoms. You also won’t have to worry about dehydration-induced ED.

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Proper hydration is important for reasons beyond stopping ED, and to avoid dehydration, regularly drinking water is critical. But how much do you really need?

According to the Institute of Medicine of the National Academies, men should aim to drink 125 ounces of water per day. This is approximately 16 eight-ounce glasses of water a day.

Consider this number as a general guideline. There are a number of factors that could alter how much water you should be drinking to avoid dehydration — and the dehydration-induced sexual dysfunction that could result.

For example, your weight can impact your daily water intake needs. Those who weigh more tend to need more water. Your metabolism, activity level, the type of climate you live in and any health conditions you have may also affect how much water you should drink.

You may also need more water on certain occasions, like if you drink alcohol, are sick or are in hot weather.

In addition to drinking plenty of water, incorporating foods that have high water content — like cucumbers, strawberries, iceberg lettuce and zucchini — is a smart move for staying hydrated.

How do you know if you’re well-hydrated? A good way to check is to look at your pee. Darker-colored urine with a strong odor is a sign that you need to be drinking more water.

Does drinking water help sexually? It could, if you’re dehydrated. ED can occur even if you’re getting plenty of fluids, however, and there are many ways to treat it.

If you are dealing with any type of sexual dysfunction, it’s always a good idea to consult with a healthcare provider. They can help you figure out the cause of your ED and develop a treatment option.

A healthcare provider may recommend trying ED medication. One of the more common ED medications is Viagra®, also sold as a generic version called sildenafil.

Sildenafil is in a class of medications called phosphodiesterase type 5 inhibitors. These work by relaxing the smooth muscles in the blood vessels that supply the penis, so you can get adequate blood flow in that area when you are aroused.

In addition to sildenafil, there are a number of other common oral ED medications. They include tadalafil, vardenafil and avanafil.

If your ED isn’t caused by something physical (like low fluid intake), it could be a psychological issue.

Depression and anxiety are two common culprits that can affect your sex drive and function. Therapy may help you cope with the mental health issues impacting your sex drive.

If you are experiencing any type of ED — whether from not drinking enough water or something else — you should make time to speak with a medical professional.

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Does drinking water help last longer in bed? Possibly, but only if you do so regularly, getting the right amount each day.

Water is essential for just about every piece of the sexual function puzzle.

  • Water plays a key role in sexual activity and sexual intercourse, and if you’re seriously or chronically dehydrated, getting your required ounces every day may help with ED.

  • Dehydration can lead to poor ejaculatory health and poor erectile function, and it can increase your risk of psychological factors associated with ED.

  • A typical adult male should try to get about 125 ounces of water per day according to one recommendation, though health, climate, elevation and physical activity all affect a person’s needs.

Living with sexual dysfunction doesn’t have to be permanent.. It’s important to get to the bottom of what is going on so that you can go back to a pleasurable sex life.

Hims offers online consultations, which makes it easy to work with a healthcare provider to assess what your ED needs may be.

12 Sources

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  2. Definition & Facts for Erectile Dysfunction | NIDDK. (n.d.). National Institute of Diabetes and Digestive and Kidney Diseases. Retrieved December 28, 2022, from
  3. Erectile dysfunction - PMC. (n.d.). NCBI. Retrieved December 28, 2022, from
  4. Erection & Ejaculation: How Does It Work. (2020, November 27). Cleveland Clinic. Retrieved December 28, 2022, from
  5. Yafi, F. A., Jenkins, L., Albersen, M., Corona, G., Isidori, A. M., Goldfarb, S., Maggi, M., Nelson, C. J., Parish, S., Salonia, A., Tan, R., Mulhall, J. P., & Hellstrom, W. J. (2016). Erectile dysfunction. Nature reviews. Disease primers, 2, 16003. Retrieved from
  6. Dunning, O.N., Fulton, C.A., Tocci, N.D., Mauney, E.L., King, M.H., Morgan, J.E. and Rogatzki, M.J. (2019), Effect of Hydration Status on Plasma and Serum Volume. The FASEB Journal, 33: 593. Retrieved from
  7. Dehydration: Causes & Symptoms. (2021, February 16). Cleveland Clinic. Retrieved December 28, 2022, from
  8. Fight fatigue with fluids. (2013, November 21). Harvard Health. Retrieved from
  9. Report Sets Dietary Intake Levels for Water, Salt, and Potassium To Maintain Health and Reduce Chronic Disease Risk. (2004, February 11). National Academies. Retrieved December 28, 2022, from
  10. Sildenafil. (2018, January 15). MedlinePlus. Retrieved December 28, 2022, from
  11. Tadalafil. (2022, February 15). MedlinePlus. Retrieved December 28, 2022, from
  12. Symptoms & Causes of Erectile Dysfunction | NIDDK. (n.d.). National Institute of Diabetes and Digestive and Kidney Diseases. Retrieved December 28, 2022, from
Editorial Standards

Hims & Hers has strict sourcing guidelines to ensure our content is accurate and current. We rely on peer-reviewed studies, academic research institutions, and medical associations. We strive to use primary sources and refrain from using tertiary references. See a mistake? Let us know at [email protected]!

This article is for informational purposes only and does not constitute medical advice. The information contained herein is not a substitute for and should never be relied upon for professional medical advice. Always talk to your doctor about the risks and benefits of any treatment. Learn more about our editorial standards here.

Mike Bohl, MD

Dr. Mike Bohl is a licensed physician, a Medical Advisor at Hims & Hers, and the Director of Scientific & Medical Content at a stealth biotech startup, where he is involved in pharmaceutical drug development. Prior to joining Hims & Hers, Dr. Bohl spent several years working in digital health, focusing on patient education. He has also worked in medical journalism for The Dr. Oz Show (receiving recognition for contributions from the National Academy of Television Arts and Sciences when the show won Outstanding Informative Talk Show at the 2016–2017 Daytime Emmy® Awards) and at Sharecare. He is a Medical Expert Board Member at Eat This, Not That! and a Board Member at International Veterinary Outreach.

Dr. Bohl obtained his Bachelor of Arts and Doctor of Medicine from Brown University, his Master of Public Health from Columbia University, and his Master of Liberal Arts in Extension Studies—Journalism from Harvard University. He is currently pursuing a Master of Business Administration and Master of Science in Healthcare Leadership at Cornell University. Dr. Bohl trained in internal medicine with a focus on community health at NYU Langone Health.

Dr. Bohl is Certified in Public Health by the National Board of Public Health Examiners, Medical Writer Certified by the American Medical Writers Association, a certified Editor in the Life Sciences by the Board of Editors in the Life Sciences, a Certified Personal Trainer and Certified Nutrition Coach by the National Academy of Sports Medicine, and a Board Certified Medical Affairs Specialist by the Accreditation Council for Medical Affairs. He has graduate certificates in Digital Storytelling and Marketing Management & Digital Strategy from Harvard Extension School and certificates in Business Law and Corporate Governance from Cornell Law School.

In addition to his written work, Dr. Bohl has experience creating medical segments for radio and producing patient education videos. He has also spent time conducting orthopedic and biomaterial research at Case Western Reserve University and University Hospitals of Cleveland and practicing clinically as a general practitioner on international medical aid projects with Medical Ministry International.

Dr. Bohl lives in Manhattan and enjoys biking, resistance training, sailing, scuba diving, skiing, tennis, and traveling. You can find Dr. Bohl on LinkedIn for more information.


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