"Excessive dampness" is a familiar term, especially in the Lingnan region. Yet few can clearly define what it truly means.Some say a thick, greasy tongue coating indicates it, while others claim constant lethargy and discomfort signify it. With these questions in mind, Family Doctor Online interviewed Dr. Chen Yi, Director of Gynecology at Guangdong Provincial Hospital of Traditional Chinese Medicine.
What exactly constitutes "excessive dampness"?Pay attention to these symptoms
The so-called dampness actually refers to one of the six pathogenic factors: wind, cold, heat, dampness, dryness, and fire. According to Director Chen Yi, when a person has heavy dampness, they may indeed exhibit a thick, greasy tongue coating. Additionally, they may experience poor appetite and feel extremely fatigued and listless. Depending on the type of heavy dampness, the following different manifestations may also occur:
"For damp-heat type dampness, patients not only have a greasy tongue coating but also experience dry mouth, bitter taste, and may suffer from painful urination, frequent urination, and constipation or loose, sticky stools. As for cold-damp patients, their thick, greasy tongue coating may turn white, and they are prone to coughing with phlegm, often accompanied by a heavy, burning sensation in the lower back."
While excessive dampness isn't a serious illness, Director Chen Yi cautions that it not only causes loss of appetite and general discomfort but, if left unaddressed, can disrupt the nourishment of other organs. "Excessive dampness weakens the spleen and stomach in the middle jiao, leading to insufficient replenishment of vital nutrients from food and drink. Over time, this disrupts the supply of these nutrients to all organs that rely on them for nourishment."
Is the "Return of South Wind" Season More Prone to Excessive Dampness? These Individuals Should Be Especially Vigilant Against Dampness Invasion
Many people casually mention suffering from excessive dampness, but Director Chen Yi explains that such conditions rarely arise without cause. Generally, excessive dampness stems primarily from environmental influences—hence why the "Return of South Wind" season in Lingnan regions is particularly prone to dampness accumulation.
"Humidity levels can rise when individuals are exposed to specific environments or pathological conditions. For instance, the unique climate of Lingnan places residents in a hot and humid environment, making them more susceptible to dampness than those in other regions. This is particularly true during spring—known locally as the 'southern return' season—when humidity peaks. Similarly, the plum rain season in the Jiangnan region presents comparable challenges."
Beyond specific seasonal patterns in certain regions, Director Chen Yi also notes that certain groups and individuals neglecting daily habits are prone to dampness accumulation. "Those working long hours in hot, humid environments—such as boiler room operators or chefs—are susceptible to dampness buildup.Dampness accumulation is also linked to constitutional factors. Individuals with qi deficiency often exhibit spleen-stomach deficiency. Traditional Chinese medicine holds that the middle jiao (spleen-stomach) governs water metabolism. When spleen qi fails to properly transform and transport fluids, internal damp-heat easily arises. Those who habitually engage in water activities or even venture out in heavy rain are also prone to dampness accumulation.During muggy weather, many people crave cold beverages—a habit that can lead to external damp-heat invasion and internal cold-damp accumulation, further exacerbating dampness."
Expert Profile
Chen Yi: Director of Gynecology at Guangdong Provincial Hospital of Traditional Chinese Medicine, Chief Physician, Doctor of Medicine, and academic successor to renowned TCM expert Professor Situ Yi. Member of the Academic Committee of the Guangdong Medical Association's Maternal and Child Health Society, and Committee Member of the Perioperative Professional Committee of the Guangdong Association of Integrated Traditional and Western Medicine.Vice Chairperson of the Traditional Chinese Medicine Professional Committee, Guangdong Association for Better Birth and Childcare. Vice Chairperson of the Traditional Chinese Medicine Health Care Professional Committee, Guangdong Maternal and Child Health Association. Council Member of the Gynecology Professional Committee, Chinese Ethnic Medicine Association. Standing Committee Member of the Integrated Traditional and Western Medicine Obstetrics, Gynecology, and Maternal-Child Health Branch, China Association for the Promotion of Traditional Chinese Medicine Research.