Several factors contribute to patient non-adherence:
1. Complexity of Treatment Regimens: Patients may find it difficult to understand and manage complex treatment schedules which involve multiple medications or lifestyle changes. 2. Side Effects: The adverse effects of medications can deter patients from adhering to their prescribed treatments. 3. Lack of Understanding: Patients may not fully understand the importance of their treatment plan or the consequences of non-adherence. 4. Psychosocial Factors: Depression, anxiety, and other mental health issues can impact a patient's ability to adhere to their treatment. 5. Economic Barriers: The cost of medications and treatments can be prohibitive for some patients. 6. Forgetfulness: Simple forgetfulness can also be a major factor, especially in elderly patients.