Overweight and obesity is a public health problem in Hungary and in the Western world. It is important to underline that obesity is an illness and an important risk factor for several skin and other diseases. An overview of skin diseases caused or aggravated by obesity (acanthosis nigricans, acrochordons, keratosis pilaris, hyperandrogenism, stria, adiposis dolorosa, lymphoedema, chronic venous insufficiency, plantar hyperkeratosis, lipoedema, skin infections, acne inversa, psoriasis, tophi) helps us to look and see as well. Look for the possibility of skin infections as it helps the early diagnosis and to avoid complications. Draw patients' attention to the preventive importance of skin care. In case of an obese patient the usual dosage of most local and systemic drugs should be modified. It must be kept in mind that obesity directly or indirectly starts unfavorable processes in almost all organ systems. Therefore, only a multidisciplinary care may secure treatment and rehabilitation of obese patients. Dermatological and lymphological care is often part of the rehabilitation.