The symptoms included in the ICHD-3 diagnostic criteria for primary headaches were used to classify the PTH phenotypes: 35 participants with PTH had migraine-like headache phenotypes, 8 had probable migraine-like phenotypes, 14 had tension-type-like headache phenotypes, 1 had probable tension type-like headache phenotype, and 2 participants’ PTH phenotypes were not classifiable. This evidence concerns the gene PTH and Headache.