TESA (Testicular Sperm Aspiration) and PESA (Percutaneous Epididymal Sperm Aspiration) are both procedures used to retrieve sperm for use in assisted reproductive techniques, such as in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI). These procedures are employed when there is difficulty obtaining sperm through ejaculation or when there is a blockage in the male reproductive tract.
