Is it mold or mildew in my shower?

Author: Celine Jaskolski  |  Last update: Tuesday, October 28, 2025

A common differentiating factor between mold and mildew is color. While mold can appear black, grey, green, brown, and occasionally red, mildew usually presents as white in its early stages, and brown or black when it ages.

How do I know if my shower has mold or mildew?

So how do you know which one you're dealing with? Mold generally looks slimy or fuzzy, tends to have a raised texture, and can come in a rainbow of colors, including deep green and black. Mildew is powdery, looks white or gray, always appears flat, and grows on surfaces.

How can I tell the difference between mold and mildew?

The main difference between mold and mildew is that mildew grows along a surface without penetrating it, making it much easier to clean and remove. Mold problems go a lot deeper, sending hyphae into the material where it's growing.

What are the symptoms of shower mold exposure?

Symptoms of mold exposure include cough, sore throat, sneezing, headaches, watery eyes, fatigue, dizziness, inability to think straight or concentrate and thrush on the mucous membranes of your body due to having a compromised immune system. Prolong mold exposures can kill you!

Can mold in a shower drain make you sick?

Bottom Line: How To Stop Mold Growth In A Pipe And Drain

Chronic mold exposure is a health risk. It is notably dangerous for allergic and immunocompromised people. As such, it is better not to delay remediation measures when you discover mold in your home.

HOW TO CLEAN A MOLDY SHOWER (super satisfying clean with me!)

How do I get rid of mold in my shower drain?

Steps to remove mold from shower drain:

Mix equal parts baking soda and water to create a paste. Use the toothbrush to apply the paste over the shower drain. Wait 10 minutes. Then use the toothbrush to scrub the entire shower drain thoroughly.

Is the black stuff in shower mold?

Black mold is quite prevalent in bathrooms in general, particular in showers and can be especially pervasive. Mold can be found on bathroom walls, around drains, and in tile grout.

How to tell if mold is making you sick?

Signs and symptoms of allergic rhinitis caused by a mold allergy can include:
  • Sneezing.
  • Runny or stuffy nose.
  • Cough and postnasal drip.
  • Itchy eyes, nose and throat.
  • Watery eyes.
  • Dry, scaly skin.

Can mold in shower spread?

This ideal habitat is created every time you take a bath or shower, or simply wash your hands or face in warm water in the bathroom sink. Other microscopic organisms and dust in the air and on the surfaces in your bathroom then feed the mold, resulting in it spreading rather rapidly.

Is it safe to clean black mold yourself?

Thus, exposure to the toxicity of black mold can cause harm to our physical health. Cleaning it yourself risks a greatly increased chance of acquiring damaging health conditions by unsettling the toxins into the air. Depending on the frequency of mold exposure, an individual's health can be severely compromised.

How do you know if it's black mold vs regular mold?

Toxic black mold growth has a more potent and identifiable smell, like the smell of decay, wet soil, or rot. Visually, it may be greenish-black, grayish-black, slimy, or more furry than other forms of mold or mildew.

Is mildew on a shower tile alive?

Mold and mildew are other significant contributors to the erosion of shower grout. These living organisms thrive in the warm and moist environment of showers. They attach to the surface of grout and feed on organic materials present, such as soap scum, skin cells, and other debris.

How do I test my house for mold and mildew?

Home testing kits are typically petrie dishes that you place in a location where you suspect harmful mold might be growing. The dish is meant to collect spores over the course of 24 to 48 hours and then grow the spores into mold, which is then evaluated by a lab or visually inspected.

What kills mold and mildew in shower?

Solution: Bleach

One part bleach to two parts water added to a spray bottle. Spritz the hard surface areas with this solution and let dry. The mold should disappear within minutes.

What if I smell mold in my bathroom but can't see it?

Call for professional help: If you are unable to find the source of the mold smell or suspect a more severe mold infestation, it may be time to call a mold remediation specialist. These professionals can conduct mold testing, identify the source of the mold, and safely remove it from your home.

What are the first signs of mold in your house?

You can usually see or smell a mold problem. Mold can appear as slightly fuzzy, discolored, or slimy patches that increase in size as they grow. Most molds produce musty odors that are the first indication of a problem. Mold can grow anywhere there is adequate moisture or a water problem.

How do you test for mold behind shower?

Pour a few drops of the bleach in the dark spots along the grout lines. If the dark areas lighten after a few minutes, then you certainly have mold. If it remains completely dark, then you have dirt and not mold. This is a good indicator of whether you have mold in your bathroom's drywall.

What are the 10 warning signs of mold toxicity?

However, some common signs that may indicate mold exposure include: Coughing, wheezing, shortness of breath, nasal congestion, and frequent sinus infections. Rashes, itching, burning sensations, and persistent skin irritation.

What can I spray in the shower to prevent mold?

directions. In a 1/2 gallon power sprayer (see picture) pour in 1/2 cup of clorox, fill with water to the 1/2 gallon mark.

How to tell if mold is behind walls?

How to Detect Mold in Walls
  1. Water stains.
  2. Dark rings.
  3. Discoloration.
  4. Deterioration like peeling, bubbling, or cracking of the paint or wallpaper.

Is it safe to stay in a house with mold?

Because of the risks that come with mold exposure, it can be unsafe to sleep in a house with mold, particularly in the affected areas because you put yourself at risk of mold allergies. This becomes especially concerning if you are sensitive to the mold.

What does harmless black mold look like?

Although the name implies a uniform coloring, black mold may appear black, dark green, or dark brown. It typically grows as a cluster of round spots with a distinctly wet, slimy appearance. As stated, black mold typically appears fuzzy or furry.

What does mildew in a shower look like?

Mildew is a specific type of mold that develops on the surface of damp walls, doors, shower grouting and similar areas. It appears as small, flat black spots and occasionally has a powdery texture.

Can you paint over mold?

While painting over mould may temporarily disguise the problem, paint alone will not kill mould. Instead, the mould will continue to grow underneath the paint until it begins to show through. It may also cause the paint to bubble or flake, ruining the finish. If possible, it's best to remove the mould before painting.

What is the best cleaner for black mold?

For a natural solution to getting rid of black mold, combine one part baking soda with five parts distilled white vinegar and five parts water in a spray bottle. Alternatively, you can use a chemical-based mold and mildew remover, all-purpose cleaners, bleach or dish soap.

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