Breaking out in a rash after exposure to sunlight is not uncommon – here’s what you need to know about sun allergy.

Dark underarms may simply have to do with pigmentation and levels of melanin in the skin. But sometimes armpit discoloration is a sign of a health condition. Learn more here.

Gao, F. (2025) Research on the Causes and Preventive Measures of Pregnancy Complicated by Acute Abdomen. Open Journal of Obstetrics and Gynecology, 15, 97-107. doi: 10.4236/ojog.2025.151010 .