Can mould make you sick? Symptoms to watch for

How mould affects the body

Mould affects people in two main ways: by releasing spores and fine particles into the air that you breathe in, and by making the indoor environment damp, which irritates airways. Not everyone reacts to mould, and people who do react can do so very differently. The same mould in the same room can cause no symptoms in one person and a persistent cough in another.

The important pattern to notice is whether symptoms are worse indoors and better when you leave. That link to the building is the clearest sign that the environment — and possibly mould — is playing a part.

Symptoms to watch for

The most common mould-related symptoms are respiratory and allergic. Watch for:

• A persistent dry cough that won't settle, especially at night.
• A blocked or runny nose, sneezing, or sinus congestion.
• Itchy, watery or red eyes.
• A scratchy throat or feeling of irritation when breathing.
• Skin irritation or dry, itchy patches.
• Tiredness or unrefreshing sleep that's worse at home.

For people with asthma, watch for more frequent use of an inhaler, wheezing, or symptoms that flare up indoors and ease when away from the property.

Why symptoms are often worse at night

Many mould-related symptoms get worse at night for two reasons. First, bedrooms are often the rooms with the most condensation — closed doors, closed windows, and several hours of breathing in a sealed space raise humidity. Second, lying down changes how you breathe and can make a cough or congestion more noticeable. If you wake up with a blocked nose or a cough that eases through the morning, the bedroom air is a likely factor.

Check behind the bed and the wardrobe against the outside wall — these are classic spots for hidden mould in Cyprus bedrooms.

Who is most at risk

Some people are more sensitive to mould than others. Higher-risk groups include:

• People with asthma, allergies or existing respiratory conditions.
• Babies and young children, whose airways are still developing.
• Older adults, particularly those with weaker immune systems.
• People with compromised immunity or chronic illness.

Even healthy adults can develop symptoms after long exposure to a damp, mouldy environment. The longer the exposure, the more likely a reaction becomes.

Mould and asthma

For people with asthma, mould is a well-known trigger. Damp air and mould spores can irritate airways, causing coughing, wheezing and chest tightness, and can make an inhaler less effective at controlling symptoms. If asthma symptoms are flaring more often, or you're reaching for a reliever inhaler more than usual at home, the indoor air quality — including mould — is worth investigating.

When to see a doctor

This article explains how mould can affect health, but it isn't medical advice. If you or anyone in your home has persistent or worsening respiratory symptoms, speak to a doctor. Medical symptoms need medical assessment, especially for children, older adults and anyone with asthma or a lung condition.

At the same time, the mould itself still needs to be found and removed. Treating symptoms without removing the source means the exposure continues. The two go together: see a doctor for the health, and get an inspection for the mould.

Signs of mould in your home

Symptoms are only half the picture. These signs in the home point to mould nearby:

• Visible patches on walls, ceilings, sealant or grout, especially ones that return within days of cleaning. See what mould looks like.
• A musty smell that lingers when the room is clean, often from mould behind walls or under floors. See what a musty smell means.
• Bubbling paint or blown plaster, which means moisture behind the surface. See why paint bubbles on mouldy walls.
• Condensation on windows most mornings, the moisture mould feeds on. See mould around windows.

Act sooner if the mould covers more than about a square metre, keeps returning, affects more than one room or comes with a tide-mark near the floor, or if you can smell it but cannot see it.

Finding and removing the source

If mould is affecting someone's health, a surface clean isn't enough. The mould needs to be properly removed and the moisture source fixed so it doesn't return. An inspection from €75 locates the moisture, measures how far it has spread, and gives you a fixed quote for removal — with the inspection fee credited toward the work. For ongoing protection after removal, a maintenance plan from €45 per month keeps humidity in check and catches any return early.