Hyperhidrosis Palmaris Et Plantaris, also known as palmoplantar hyperhidrosis, is related to pachyonychia congenita 1 and late-onset junctional epidermolysis bullosa. An important gene associated with Hyperhidrosis Palmaris Et Plantaris is HHPP (Hyperhidrosis Palmaris Et Plantaris). Affiliated tissues include skin, and related phenotype is palmoplantar hyperhidrosis.