El Alto presents some challenges for solo female travelers. The city is known for its high crime rates, especially theft and opportunistic petty crimes, which are reported often. Like many other large cities, certain neighborhoods are more dangerous, particularly at night. It is recommended to stay vigilant and aware of your surroundings at all times, and avoid going out late without company. Chatting with locals can give a better understanding of which areas are safer than others. Though many people are friendly and helpful, it's important to be cautious, use reputable transportation services, and avoid displaying valuable items in public.