The official GOV.UK PIP assessment guidance explains that an assessment may be carried out by telephone, video call or in person, depending on your circumstances. A health professional will ask how your condition affects daily living and mobility, and may consider supporting evidence from your doctor or other professionals. You can ask for reasonable adjustments if needed, and should explain what happens on your difficult days rather than only your best days. The Department for Work and Pensions makes the final decision using all the available information.