A stressed leopard gecko often shows it through changes in behavior rather than obvious symptoms. Tail waving or vibrating (different from the calm tail wag some geckos do while hunting) can signal agitation, especially paired with a raised or arched posture.
Loss of appetite over several days, hiding constantly even during normal active hours, or dark, blotchy skin coloring can all point to stress or an unsuitable environment. Glass surfing โ repeatedly climbing and scratching at the enclosure walls โ usually means the habitat feels too exposed or lacks enough hiding spots.
Handling stress is common too: geckos that drop their tails (a natural defense mechanism) when picked up are telling you handling was too frequent, too rough, or happened before they were ready. If stress signs persist, double-check temperatures, humidity, and hide availability first, since habitat setup is the most common underlying cause.