1. Hemophilia - disease in which blood does not coagulate normally
2. Hiatal hernia - part of stomach protrudes through the diaphragmatic hiatus into the chest
3. Hodgkins Disease - cancer in the lymphatic system
4. Huntington's Disease- inherited neurological disease characterized by mental deterioration and jerky movements
5. Hypertension - high blood pressure
6. Inflammation - infection causes tissue damage
7. Kidney stone - lump in the urinary track that can cause pain, nausea, and frequent urination