Cancer treatments can trigger cutaneous side-effects, as well as nail and hair toxicities. When related to drug treatment, this iatrogeny depends on the type of drug, its dosage and individual susceptibility. Although these dermatological adverse events are rarely serious, they can significantly alter patients' quality of life, and may even necessitate the introduction of curative treatment.

The impact of these side effects can be mitigated by the use of dermo-cosmetic products and aesthetic solutions. However, most of this supportive care is not reimbursed by the health insurance system, representing a source of inequalities in access to healthcare for cancer patients.

This study aims at establishing, in a cohort of patients with solid tumors, the state of their knowledges, given information and their financial capacities regarding access to dermo-cosmetics and aesthetic solutions, that are used in the attenuation of cancer treatments' side-effects.

Inclusion Criteria:

• Age > 18 years
• Patients with solid tumors (eligible localization include: digestive system, Head and Neck, Breast, Brain, Lung Tumors, Urological and Gynecologic cancers)
• Patients able to read and understand French
• Patients that has expressed their consent and with signed consent form

Exclusion Criteria:

• Minor or patients placed under guardianship or supervision
• Patients unable to read French
• Patients placed under judicial protection

This study will enroll patients with solid tumors in 7 different cohorts according to tumor location (30 patients per location)