Can you get pink eye from a fart or poop? It Depends

By MedDigester Doctors on July 22, 2023

  • can you really get pink eye from a fart or poop? actually, it depends on the amount of fecal matter and bacteria involved, if your hand is contaminated with microorganisms from touching your anus or fecal matter and then touching your eye, this can cause conjunctivitis,
  • You should not directly touch your mouth or anus, and then directly touch your eye. Both the mouth and anus carry a lot of bacteria. These bacteria can cause bacterial conjunctivitis.
  • Pink eye is the everyday term people use to describe an infection (viral or bacterial) or allergies of the eye. The medical term for pink eye is “conjunctivitis.” It usually gets better in a couple of weeks without treatment.
  • Conjunctivitis that produces sticky pus is contagious, but Conjunctivitis caused by allergies like hay fever makes eyes red and watery but is not contagious.

What actually causes you pink eye?

Viral conjunctivitis is highly contagious. Most viruses that cause conjunctivitis spread through hand-to-eye contact by hands or objects that are contaminated with the infectious virus.

Having contact with infectious tears, eye discharge, fecal matter, or respiratory discharges can contaminate hands. Viral conjunctivitis can also spread by large respiratory tract droplets.

Bacterial conjunctivitis can spread from person to person in many ways. These include hand-to-eye contact, via eye contact with contaminated objects, through sexual encounters with eye-to-genital contact, or vertically from mother to baby.

Bacteria can also spread by large respiratory tract droplets. Alternatively, changes in the usual bacteria that live on the conjunctiva can also cause conjunctivitis.

Allergic conjunctivitis is common in people who have other signs of allergic diseases, such as hay fever, asthma, and eczema. It is caused by the body’s reaction to certain substances it is allergic to, such as

Pollen from trees, plants, grasses, and weeds, Dust mites, Animal dander, Molds, Contact lenses, lens solution, Cosmetics.

Serious causes of red eye

Acute angle closure glaucoma

It is a serious eye condition that can cause vision loss if left untreated. It happens when the fluid inside your eye can’t drain properly and builds up, leading to increased pressure in your eye.

This can cause damage to your optic nerve, which is responsible for transmitting visual information to your brain.

The main symptoms of acute angle closure glaucoma include

  • severe eye pain.
  • blurred vision.
  • halos around lights.
  • nausea, and vomiting.
  • a red eye.
Pink eyeAcute angle closure glaucoma
itchingsevere eye pain
wateringblurred vision.
dischargehalos around lights.
a gritty feelingnausea, and vomiting.

If you experience these symptoms, it’s important to seek medical attention right away.

immediate treatment in the hospital for acute angle closure glaucoma is to lower the pressure inside your eye.

This can be done with eye drops, oral medications, or laser surgery. In some cases, you may need surgery to create a new drainage channel to help the fluid inside your eye drain properly.

Anterior uveitis

Anterior uveitis is a condition where the middle layer of the eye, called the uvea, becomes inflamed. This can cause pain, redness, and sensitivity to light.

It’s important to seek medical attention if you suspect you have anterior uveitis, as prompt treatment can help prevent complications and preserve your vision.

The main symptoms of anterior uveitis include

  • eye pain (usually a dull ache in or around your eye)
  • eye redness
  • sensitivity to light (photophobia).
  • blurred vision
  • small shapes moving across your field of vision(floaters).
  • a feeling of pressure in the eye.
Pink eyeAnterior uveitis
itchingdull aching eye pain
wateringblurred vision
dischargesensitivity to light
a gritty feelingfloaters

These symptoms can develop suddenly or gradually and may affect one or both eyes. If you experience any of these symptoms, it’s important to see an eye doctor as soon as possible.

The main treatment for anterior uveitis involves reducing inflammation in the eye. This may involve using eye drops or oral medications, such as corticosteroids.

Your eye doctor may also recommend wearing sunglasses or an eye patch to help alleviate symptoms. It’s important to follow your doctor’s instructions carefully and attend any follow-up appointments to monitor your progress.

In some cases, surgery may be necessary to treat complications or manage severe cases of anterior uveitis.

Corneal ulcer and contact lens-related red eye

A corneal ulcer is a condition that affects the clear front part of your eye, known as the cornea. It occurs when a sore or lesion develops on the cornea, which can be caused by various factors such as infection, injury, or prolonged use of contact lenses.

Corneal ulcers can be a serious condition that requires prompt medical attention to prevent complications and vision loss.

People who wear contact lenses are more likely to get corneal ulcers. This risk is 10 times higher if you use extended-wear (overnight) soft contacts.

Bacteria on the lens or in your cleaning solution could get trapped under the lens. Wearing lenses for long periods can also block oxygen to your cornea, raising the chances of infection.

Scratches on the edge of your contact might scrape your cornea and leave it more open to bacterial infections. Tiny particles of dirt trapped under the contact could also scratch your cornea.

The main symptoms of corneal ulcer include

  • eye pain
  • eye redness
  • eye tearing
  • sensitivity to light.
  • blurred vision,
  • discharge from the eye,
  • and the feeling that there is something in your eye.
  • A round white spot on your cornea
Pink eyeCorneal ulcer
itchingPain(something in your eye)
wateringblurred vision
dischargesensitivity to light
a gritty feelingExcessive watering
 A round white spot on your cornea

These symptoms can be very uncomfortable and may affect your ability to carry out your daily activities, If you suspect that you have a corneal ulcer, it is important to seek medical attention as soon as possible.

Treatment for corneal ulcers may include prescription eye drops or ointments to control infection and promote healing according to the cause which may be anti-bacterial, anti-viral, or anti-fungal. In some cases, oral antibiotics or antiviral medications may also be necessary

If you are a contact lens wearer you will be advised when you will be able to start wearing lenses again by your doctor or optometrist.

Corneal foreign body

A corneal foreign body is a condition where a small object like a piece of metal, wood, or dust gets stuck in your eye’s cornea. The cornea is the clear, outer layer of your eye that helps you see clearly.

When a foreign object gets lodged in your cornea, it can cause discomfort and pain. It is important to seek medical attention if you suspect you have a corneal foreign body.

  The main symptoms of a corneal foreign body include

  • eye redness
  • eye tearing
  •  eye pain
  • sensitivity to light.
  • feel like something is stuck in your eye
  • your vision may become blurry.
Pink eyeCorneal foreign body
itchingPain(something in your eye)
wateringblurred vision
dischargesensitivity to light
a gritty feelingExcessive watering
 History of foreign body lodged in the eye

If you experience any of these symptoms, it is important to avoid rubbing your eye as this can cause the object to move around and cause further damage.

The treatment for a corneal foreign body usually involves removing the object from your eye after using a numbing eye drop to reduce pain and discomfort. They may also use a small, specialized tool to remove the object.

If the object is too difficult to remove or has caused significant damage to your cornea, you may require surgery. After the object is removed, your doctor may prescribe antibiotic eye drops to prevent infection and promote healing.

If you normally wear contact lenses, you should not do so until the eye injury has completely healed.


Scleritis is an inflammatory disease that affects the white outer layer of your eye, called the sclera. It is a rare condition that can be quite painful and can lead to serious complications if left untreated.

Scleritis is often caused by an underlying autoimmune disease, such as rheumatoid arthritis or lupus. Sometimes, it can also be caused by an infection or injury to the eye.

The main symptoms of scleritis include

  • severe eye pain which may radiate to the forehead and jaw.
  • Eye redness,  occasionally changing to a purple hue. Redness may not always be present.
  • blurred vision,
  • sensitivity to light,
  • and a feeling of pressure in the eye.
Pink eyeScleritis
rednessRedness (changing to a purple hue)
itchingsevere eye pain
wateringblurred vision
dischargesensitivity to light
a gritty feelingHistory of autoimmune disease

If you experience any of these symptoms, it is important to seek medical attention right away. Your doctor will perform a thorough examination of your eye to determine if you have scleritis and what type of treatment is needed.

The initial treatment is usually with nonsteroidal anti-inflammatory drugs. Most patients respond well to this treatment. Some patients require stronger immunosuppression treatment, such as steroid tablets, or alternative immunosuppressive medications.


Endophthalmitis is an inflammation of the internal eye tissues, most commonly caused by an infection

this is normally a post-operative infection that occurs within the first 2 weeks of surgery and can rapidly cause blindness

  • There is a history of recent surgery, trauma, intravenous drug use, or immune compromise.
  • markedly reduced vision,
  • significant pain/headache,

you could be admitted into a hospital for more intensive treatment such as intravenous antibiotics.

How to prevent conjunctivitis spread

  • wash your hands regularly with warm soapy water
  • wash your pillowcases and face cloths in hot water and detergent
  • cover your mouth and nose when sneezing and put used tissues in the bin
  • do not share towels and pillows
  • do not rub your eyes

How to treat conjunctivitis yourself

There are things you can do to help ease your symptoms.

  • Boil water and let it cool down before you gently wipe your eyelashes to clean off crusts with a clean cotton wool pad (1 piece for each eye).
  • Hold a cold flannel on your eyes for a few minutes to cool them down.
  • Do not wear contact lenses until your eyes are better

Speak to a pharmacist about conjunctivitis. They can give you advice and suggest eyedrops or antihistamines to help with your symptoms.

If you need treatment for a child under 2, you’ll need a prescription from a GP.

You do not need to stay away from work or school unless you or your child are feeling very unwell.

Treatment from a GP

Treatment will depend on the cause of your conjunctivitis.

If it’s a bacterial infection, you might be prescribed antibiotics. But these will not work if it’s caused by a virus (viral conjunctivitis) or an allergy.

Important points about farts and Flatulence:

  • Intestinal gas is a normal bodily process, and belching and flatulence are common symptoms.
  • Swallowed air contributes significantly to gas symptoms.
  • Certain foods, such as beans, broccoli, and cabbage, and carbonated beverages like soda and beer can also cause gas.
  • Lactose intolerance and bacterial overgrowth in the small intestine can also lead to gas production.
  • Abdominal distension when erect but not recumbent may be due to weak abdominal muscles.
  • Keeping a “flatus” diary for three days can help identify the cause of gas symptoms.
  • Treatment options include avoiding certain foods and beverages, using antispasmodic therapy, and occasionally using antibiotics.
  • The low FODMAP (fermentable oligo-, di-, and monosaccharides and polyols) diet. This involves cutting out certain foods that are poorly absorbed and that can result in gas symptoms) maybe helpful in reducing gas symptoms, and consulting a dietician can provide specific dietary advice.
  • Simethicone and charcoal products are not effective in reducing gas symptoms.
  • If symptoms persist or worsen, medical attention should be sought to rule out any underlying abnormalities.

MedDigester Doctors depend on high-quality medical evidence as peer-reviewed studies, academic research institutions, and medical associations. We don’t use low-quality or tertiary references.

• CDC. (2021). Conjunctivitis (Pink Eye).

• American Academy of Ophthalmology. (2018). Conjunctivitis PPP.

• Azari AA, et al. (2013). Conjunctivitis.

• Boyd,K. (2023). Conjunctivitis: What Is Pink Eye?

• Boyd,K. (2022). What Is Glaucoma? Symptoms, Causes, Diagnosis, Treatment.

• National Institute for Health and Care Excellence(NICE). (2021). Red eye.

• NHS. (2021). Glaucoma.

• NHS. (2020). Uveitis.

• The Royal Children’s Hospital. (2022). Acute eye injury.

• NHS. (2021). Conjunctivitis.

• Lee WB. (2022). Can you get pink eye from touching your eye after touching your anus?

• Elizabeth Huebner, MD. (2022). Belching, Bloating, and Flatulence.