Is bathroom black mold dangerous to remove ourselves?« Back to Previous Page

We've lived in our Jumeirah apartment for two years and just noticed a patch of black mold growing behind the toilet where it meets the wall. My husband has been waking up with a stuffy nose and itchy eyes for the past month, and I'm starting to worry it's connected. Is this type of mold in a bathroom dangerous, and should we get a professional to remove it or can we handle it ourselves with bleach?
Posted by Vikram Joshi
Asked on May 11, 2026 5:00 pm
Black mold in bathrooms is common here due to Dubai's high humidity and condensation from showers and AC units. The type behind your toilet is frequently Cladosporium or Aspergillus, which can cause the exact symptoms your husband is experiencing—stuffy nose, itchy eyes, and respiratory irritation.

For a small patch (under one square foot), you can attempt removal yourself. However, bleach is not recommended as it only removes surface discoloration; it doesn't kill the mold roots penetrating porous grout or drywall and can worsen indoor air quality. Instead, use a dedicated EPA-approved fungicide or a simple solution of white vinegar and water. Scrub the area, ensure it is completely dry, and fix the moisture source—often a leaking toilet seal or condensation drip.

Given the symptoms and the location (behind a fixture where hidden damage is likely), a professional assessment is advisable. They can identify the species through lab analysis to confirm the health risk and use containment procedures to prevent spores from spreading into your living space during removal. In many Jumeirah apartments, what you see is just the tip of the iceberg, with moisture trapped within the wall. Dubai Municipality guidelines hold property owners responsible for maintaining a mold-free environment, so you may also need to engage your building management to address the underlying cause.
Posted by Sani Admin
Answered on May 13, 2026 12:31 am