treated with in guideline Constitutional Symptom Pain http://purl.obolibrary.org/obo/HP_0012531 Suggest update to description An unpleasant sensory and emotional experience triggered in the nervous system, associated with actual or potential tissue damage, or described in terms of such damage. Nociceptive pain is believed to be caused by the ongoing activation of pain receptors in either the surface or deep tissues of the body. There are two types: "somatic" pain and "visceral" pain. Neuropathic pain is believed to be caused by changes in the nervous system that sustain pain even after an injury heals. "Psychogenic" pain is a simple label for all kinds of pain that can be best explained by psychological problems. Somatic pain is caused by injury to skin, muscles, bone, joint, and connective tissues. Deep somatic pain is usually described as dull or aching, and localized in one area. Visceral pain refers to pain that originates from ongoing injury to the internal organs or the tissues that support them. Somatic pain from injury to the skin or the tissues just below it often is sharper and may have a burning or pricking quality. Suggest update to description in HPO. Provide source for additional info. HP:0012531 Transcutaneous Electrical Nerve Stimulation Treatment of Precipitating Factors Recommendations for the Management of Sickle Cell Disease in South Africa National Guideline for the Control and Management of Sickle Cell Disease Management of Sickle Cell Disease - The United Republic of Tanzania A Parental Guide to Managing Sickle Cell Disease Standards for Clinical Care of Adults with Sickle Cell Disease in the UK Sickle Cell Disease: The Clinical Care Guidelines of the Sickle Cell Unit Consensus Statement on the Care of Patients with Sickle Cell Disease in Canada Sickle Cell Disease in Children, Standards and Guidelines for Clinic Care Evidence-Based Management of Sickle Cell Disease Management of Children with Sickle Cell Disease in Europe: Current Situation and Future Perspectives ENERCA Clinical Recommendations for Disease Management and Prevention of Complications of Sickle Cell Disease in Children