• (hydrocele testis) Accumulation of clear fluid in the between the layers of membrane (tunica vaginalis) surrounding the testis.
  Human Phenotype Ontology (HPO)
  The Human Phenotype Ontology Project, 2025
• (vaginal hydrocele) Accumulation of clear fluid in the between the layers of membrane (tunica vaginalis) surrounding the testis.
  Human Phenotype Ontology (HPO)
  The Human Phenotype Ontology Project, 2025
• Accumulation of serous fluid between the layers of membrane (tunica vaginalis) covering the TESTIS in the SCROTUM.
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2025
• A hydrocele is a fluid collection within the tunica vaginalis of the scrotum or along the spermatic cord. These fluid collections may represent persistent developmental connections along the spermatic cord or an imbalance of fluid production versus absorption.
  Medscape
  WebMD, 2025
• A hydrocele (HI-droe-seel) is a type of swelling in the scrotum that occurs when fluid collects in the thin sheath surrounding a testicle. Hydrocele is common in newborns and usually disappears without treatment by age 1. Older boys and adult men can develop a hydrocele due to inflammation or injury within the scrotum.
  Mayo Clinic
  Mayo Foundation for Medical Education and Research, 2025
• Hydrocele is a collection of serous fluid between the layers of the membrane (tunica vaginalis) that surrounds the testis or along the spermatic cord. Rarely, similar fluid collection can occur in females along the canal of Nuck. There are 2 types of hydroceles: communicating and noncommunicating (simple).
  Epocrates
  Athenahealth, Inc., 2019
• Hydrocele, excessive accumulation of fluids in the scrotal sac that surrounds the testes in the male reproductive tract. There are many forms of hydrocele. The most common is chronic simple hydrocele, in which fluid accumulates gradually about the testes. It usually afflicts men past the age of 40...
  Encyclopedia Britannica
  Encyclopedia Britannica, Inc., 2025