Objectives: 1. Demonstrate the creation of a brief questionnaire to screening in clinical practice, able to diagnose female sexual dysfunction. 2. Implement a score that detects the need for referral to a specialist. Design and methods: This is a screening for FSD, with only four questions that include the variables: sexual frequency, orgasm, pain and sexual initiative, in a Likert scale. The applicability was demonstrated in a retrospective cross-sectional study of patients. They were seen in Sexology Clinic of a Public Hospital, setting a score and cut-off. Chi-squared test, Fisher’s exact test and analysis of variance (ANOVA) were used; significant level (p= 0.05). Results: The score ranged from 4 to 16 points. The average of the patients before the sex therapy was 7.5 (± 2.4) points and after the sex therapy they increased for 10.9 (± 3.3); (p <0.001). The patients, who had experienced sexual violence or with primary anorgasmia, had a poorer prognosis and those with higher levels of education or good levels of orgasms, had better prognosis. The development with treatment showed a significant raise of the score. (p = 0.013). Conclusions: The instrument provided an opportunity to approach sexuality by general practitioners and FSD detection through a score. The patients had a good understanding of the issues and their demands were attended.