"I need a doctor" is a common phrase that refers to seeking medical attention or aid. However, there are alternative expressions that can convey the same message. For instance, saying "I require medical assistance" or "I'm in need of emergency medical care" may be more formal and explicit. "I'm feeling unwell" or "I'm experiencing discomfort" could also suggest that one needs medical attention. It's important to convey the urgency of the situation, so phrases such as "I'm in pain" or "I'm feeling really sick" can also be used to express the need for a healthcare provider's assistance. Whatever variation is used, seeking medical attention promptly can prevent further harm or complications.