What causes Mucus Buildup?

Mucus buildup can be caused by a variety of factors, including infections (like colds or sinusitis), Allergies, irritants (such as smoke or pollution), and certain medical conditions (like Asthma or cystic fibrosis). When the body detects an irritant or pathogen, it produces more mucus as a defense mechanism to trap and eliminate these harmful substances. Additionally, dehydration can thicken mucus, making it harder to expel. Environmental factors and lifestyle choices, such as diet and hydration levels, also play a role in mucus production.