People afflicted with hypochondria most often fear either cancer, heart disease, or stroke, and those worried about cancer are most commonly women concerned about breast cancer.
現代醫學固然認為此病無性別之分，但常見病人心理焦慮的對象以癌症、心臟病、中風等文明病為主，而癌症裡，又以女性乳癌最教人害怕。