Can the vas deferens be reconnected if it is severed?

A ruptured vas deferens can be successfully reconnected through microsurgery. The success rate of vas deferens reversal is mainly related to factors such as rupture time, surgical technique, postoperative care, patient age, and the presence of other reproductive system diseases.

1. Microsurgical anastomosis:

Vas deferens reversal is usually performed under a microscope, using delicate suturing techniques to reconnect the two ends of the severed vas deferens. The success rate of surgery can reach 60%-90%, and anti-inflammatory treatment is required to prevent infection after surgery. The quality of the anastomosis directly affects the sperm passage rate and the partner's probability of natural conception.

2. Influence of fracture time:

The best repair effect is within 6 hours of acute injury, and scarring and obstruction may occur after more than 1 month. Chronic rupture requires intraoperative cleaning of fibrotic tissue, and stent assistance is used when necessary. Prolonged time will lead to proximal vas deferens dilation and impaired spermatogenesis.

3. Technical differences:

Compared with traditional single-layer suture and modified double-layer suture, the latter can improve the accuracy of luminal alignment. Some medical institutions use laser-assisted or bioadhesive bonding techniques, but microscopic anastomosis remains the gold standard. The surgery must be performed by a professional urologist.

4. Postoperative evaluation:

Routine semen examination is required 3 months after surgery to observe the recovery of sperm density and motility. Some patients may develop anastomotic stenosis and need to be evaluated by seminal tractography. The pregnancy rate of the spouse is about 40%-70% 6-12 months after successful recanalization.

5. Alternatives:

For those who have failed recanalization, percutaneous epididymal sperm aspiration combined with in vitro fertilization technology can be considered. Patients with severe scarring may require vasoepididymistomy. Testicular spermatogenic function should be comprehensively evaluated before surgery to rule out irreversible obstructive factors.

You should avoid strenuous exercise for 2-3 months after surgery, and wear a special scrotal support to reduce traction. Keep the wound clean and dry, and change dressings regularly. The diet needs to increase the intake of zinc, selenium and other trace elements, such as oysters, nuts, etc. to promote the recovery of spermatogenic function. Quit smoking and drinking for at least six months, and keep your body mass index within the normal range. Moderate ejaculation can be attempted from 6 weeks after surgery, but frequent sexual stimulation must be avoided. Regularly review semen quality until your partner successfully conceives, and cooperate with reproductive hormone regulation treatment if necessary. Psychological counseling can help relieve fertility anxiety, and it is recommended that couples participate in the postoperative recovery process together.