Please assess the completion status of the following clinical trial:

Trial Title: Exploration of Ejaculation Changing Mechanism After Surgery for Benign Prostatic Hyperplasia

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: OTHER
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Man, at least 18 years, which is scheduled for a BPH surgery~* Sexually active~* Measurement of Residual postvoid less than 6 months~* Patients accepting the constraints of the study~* Signed Consent~* Affiliate or beneficiary of social security system.~Exclusion Criteria:~* Patients unable to understand the study or to give consent~* Patients with known infertility~* Patients previously operated prostate~* Patients previously treated with a natural prostate treatment (radiotherapy, microwave, radio frequency, ultrasound)~* Patients with known urethral stenosis before surgery~* Patient with impaired preoperative in ejaculation~* Patient under guardianship or under judicial protection~* Patient subject to psychiatric care

- Gender: MALE
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Search retrograde ejaculation (Type: EXPERIMENTAL): Sperm count (spz) after orgasm achieved by masturbation will be measured, corresponding to the sum of spz collected in the ejaculate (E) and the first urine after orgasm (U). These measures will be made before surgery (E1 and U1) and after surgery (E2 and U2). The values E1, E2, U1 and U2 will be achieved by multiplying the concentration of spz per unit volume by the total volume of collection.

Based on this trial design, predict the completion outcome and termination type (if applicable).