Why is tinea cruris particularly itchy at night?

Jul 16, 2024 Source: Cainiu Health
Disease description:

I am 32 years old and have recently been diagnosed with tinea cruris (jock itch). It becomes especially itchy at night, to the point that I can't sleep. I would like to know why tinea cruris causes more intense itching at night.

Doctor's answer (1)
Dr. Wang Xiaoyan
The reasons for increased itching at night due to jock itch include: 1. **Active fungal infection**: Fungi are more active at night, leading to enhanced inflammatory reactions that stimulate the skin and intensify itching. 2. **Increased nerve sensitivity**: At night, in a quiet environment with reduced distractions, nerve sensitivity tends to be higher, making the sensation of itching more pronounced. 3. **Elevated local temperature**: During sleep at night, the temperature of certain body areas rises, creating favorable conditions for fungal growth and activity, thereby worsening itching. 4. **Other complications**: Jock itch may be accompanied by complications such as nerve dysfunction, eczema, or urticaria, which can also contribute to increased itching at night.