Gut Health Alarms: Subtle Signs Your Digestion Is in Trouble

27. Perioral Dermatitis or Rash Around the Mouth

Beyond general skin issues, a specific rash like perioral dermatitis (a persistent redness and bumps around the mouth and nose) is frequently linked to underlying gut dysbiosis. This inflammatory skin condition often resists topical treatments because its root cause lies internally. An imbalance of flora or a specific overgrowth (like Candida) in the gut can create systemic inflammation that manifests uniquely in the sensitive skin around the mouth. Recognizing this localized rash as a systemic immune flare allows treatment to be focused on restoring microbial balance.

28. Xanthelasma (Yellowish Spots on Eyelids)

The presence of xanthelasma—small, yellowish cholesterol deposits that form near the inner corner of the eyelids—can be a physical sign of compromised gut-metabolic function. While these are directly related to high blood lipids (cholesterol), the gut microbiome plays a crucial role in the body’s ability to process, metabolize, and excrete dietary fats and cholesterol. These visible deposits suggest your entire lipid regulatory system is under stress, often due to a lack of beneficial bacteria to help process cholesterol effectively.