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Orange urine (pee) can have many possible causes. One common cause of orange or dark yellow urine is high intake of vitamins such as beta carotene or B-12. Dehydration can also cause your urine to become more concentrated, giving it an orange appearance.

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By Tracee Cornforth Tracee Cornforth is a freelance writer who covers menstruation, menstrual disorders, and other women's health issues.

Kostelnik SB, Davy KP, Hedrick VE, Thomas DT, Davy BM. The validity of urine color as a hydration biomarker within the general adult population and athletes: a systematic review. J Am Coll Nutr. 2021;40(2):172-9. doi:10.1080/07315724.2020.1750073

The CERCO UV lenses have an unrivaled performance in UV applications, which makes it a must have in combustion research and other high-speed imaging applications such as Molecular Tagging Velocimetry (MTV). Imaging in combustion and MTV applications involves capturing UV emission from chemical species such as NO, OH*, and CH* radicals. The use of short gates and optical filters to only capture the desired emission spectrum and block strong emission at other wavelengths can result in the reduction of signal, making a high-quality lens a mandatory component in an imaging setup. The CERCO lens offers the widest aperture among other commercial UV lenses.

When this happens, bilirubin can build up and escape into the bloodstream. Bilirubin is a yellowish substance in bile. A buildup of bilirubin in the blood will eventually tint the urine.

The CERCO lenses have an unrivaled performance in UV applications, which makes it a must have in combustion research and other high-speed imaging applications such as Molecular Tagging Velocimetry (MTV). Imaging in combustion and MTV applications involves capturing UV emission from chemical species such as NO, OH*, and CH* radicals. The use of short gates and optical filters to only capture the desired emission spectrum and block strong emission at other wavelengths can result in the reduction of signal, making a high-quality lens a mandatory component in an imaging setup. The CERCO UV lenses offers the widest aperture among other commercial UV lenses.

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Your pee can turn orange when it becomes too concentrated. Urine gets its signature yellow color from a pigment called urochrome, which is created when dead blood cells are broken down. The more concentrated urine is, the more urochrome it contains and the brighter in color it will be.

Because you don't drink while asleep, you may notice your urine is orange in the morning. Your urine might also be darker after a sweaty workout. This is because you lose fluids when you sweat.

Orange pee may be related to what you eat and drink. Food and drink that is red, orange, or very dark yellow can darken urine. This is mostly because these foods contain beta-carotene.

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A urinary tract infection is more likely to cause urine that is cloudy or milky in appearance. However, a urinary tract infection can also cause blood in the urine, which can look reddish or brownish.

The UV lenses from CERCO have been designed for use with ultraviolet scientific cameras or cameras equipped with image intensifiers working with ultraviolet light. The CERCO lens has been optimized for imaging in the ultraviolet range, although it is usable from the ultraviolet to near infrared wavelengths requiring minimal focus shift. Axiom Optics offers three versions of the high-quality CERCO UV lens: 28mm, 45mm, and 100 mm focal length.

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If you have dark yellow or orange pee even though you think you're drinking enough water, you may be underestimating how much you need. Make sure to drink plenty of unsweetened, nonalcoholic beverages throughout the day. You can also get water from things you eat, like juicy fruits and vegetables.

Perrier ET, Johnson EC, McKenzie AL, et al. Urine colour change as an indicator of change in daily water intake: a quantitative analysis. Eur J Nutr. 2016;55:1943-1949. doi:10.1007/s00394-015-1010-2

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Darker urine can happen when you aren't well-hydrated. Water from the fluids you drink dilutes, or waters down, your urine. When the urine is more concentrated, it can look dark yellow or orange.

Sometimes orange urine is a symptom of a more serious illness, like bile duct or liver disease. If your orange pee doesn't resolve on its own or you have other symptoms like pale stools and stomach problems, it's a good idea to see a healthcare provider.

Applications of the CERCO UV lenses Combustion imaging High-speed imaging Plasma research Molecular Tagging Velocimetry Biological characterization Fluorescence Forensic sciences     Click here to read one of our technical blog on intensified UV imaging.

Wide Range of Applications: Combustion processes (automotive, aerospace, power generation), plasma research, Laser Induced Fluorescence, Molecular Tagging Velocimetry, and other fluorescence or bioluminescence processes.

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Carrots and carrot juice are examples of food and drink that might darken your urine. For a small number of people (about 14%), beets may have the same effect. Beet-tinted urine may look more red than orange.

Kidney disease is not usually associated with changes in the color of urine. However, people with kidney disease or kidney failure can sometimes have blood in their urine, which can give it a reddish or brown color.

If you experience any of these, see a healthcare provider. Blood tests and, if necessary, an ultrasound or biopsy of your liver can help diagnose your condition.

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Minimal Chromatic Aberrations: Although designed for the ultraviolet range, CERCO lenses are well corrected for optical aberrations from the ultraviolet to the near infrared, requiring negligible refocus.

Urine is usually a pale shade of yellow. A number of things could make it a darker color like orange. Usually, orange pee means you need to take in more fluids. It may also be an effect of something you ate, or a medication or supplement you're taking.

The UV lenses from CERCO have been designed for use with ultraviolet scientific cameras or cameras equipped with image intensifiers working with ultraviolet light. The CERCO lens has been optimized for imaging in the ultraviolet range, although it is usable from the ultraviolet to near infrared wavelengths requiring minimal focus shift. Axiom Optics offers three versions of the high-quality CERCO UV lens: 28mm, 45mm, and 100 mm focal length.

Sometimes, orange pee can happen because something you ate or drank or a supplement you took changes the color of your pee. In most cases, you do not need to worry about orange urine. There is often a simple explanation.

It is important to detect and treat cholestasis promptly. Early treatment can prevent further damage to your liver or bile ducts.

Hussain EA, Sadiq Z, Zia-Ul-Haq M. Betalains as colorants and pigments. In: Betalains: Biomolecular Aspects. Springer, Cham; 2018:125–137. doi:10.1007/978-3-319-95624-4_7

Orange pee may be a sign of cholestasis. This occurs when the flow of bile stops between the liver and the small intestine. Bile is a digestive fluid that's produced in the liver.

Research shows that the color of your urine can be related to whether you're getting enough fluids. If yours is dark yellow or shades of orange, you need to take in more fluids. Drinking water is the most efficient way to do this.

Orange pee is just one symptom of cholestasis due to bile duct or liver problems. Other symptoms may include some or all of the following: