The Aim: To evaluate risk factors for dysmenorrhea in women of reproductive age and to review its characteristics. Material and Methods: A questionnaire was conducted among 354 women followed by a statistical analysis of the gathered data. Results: Among the interviewed women 84.2 % suffer from painful menstruations. Women under 25 years of age are more likely to experience pain, which reduces with age. Dysmenorrhea is more common among women whose menstrual cycles are irregular (92.5%) with a number of bleeding days 4–7 (90.7 %), though still occurring within the normal 21–35 days interval (87.6 %). Nulliparous women are more likely to experience menstrual pain (89.9 %). Conclusion: Dysmenorrhea depends on women’s age, length of menstrual bleeding, length of menstrual cycle and its regularity, age at menarche and parity, but does not depend on body mass index and smoking status.

Keratoacanthoma is a benign skin tumour caused mainly by ultraviolet A radiation. It affects 150 out of every 100 000 people worldwide. The most common location is the face, neck, and hands. Keratoacanthoma usually affects middle-aged and older men with a fair skin phenotype. More importantly, this disease may be a complication of cutaneous cornification. Keratoacanthoma is described as a circumscribed conical prominent hyperkeratotic lesion in the literature, and the main factor provoking this complication is ultraviolet radiation. Fair skin phenotype, male sex, and older age may contribute to the development of cutaneous horn disease. Another possible complication of keratoacanthoma is squamous cell carcinoma, which is defined as a malignant composed of epidermal keratinocytes skin tumour. Squamous cell carcinoma is very similar to keratoacanthoma, but is prone to metastasis and has unclear tumour borders. Ultraviolet radiation and the treatment of keratoacanthoma by using chemotherapy are some of the main provocative factors. All three of these diseases are treated surgically. The purpose of this article is to discuss the etiopathogenesis, clinic, diagnosis, treatment of kerato­acanthoma, essential complications – skin horn, squamous cell carcinoma, and a clinical case related to these diseases.