BACKGROUND: Previous reports have shown a potential causal impact of vasectomy on prostate cancer (PCa). The objective of this study was to investigate the association between vasectomy and PCa, while evaluating the influence of confounding factors such as prostate-specific antigen (PSA) screening and body mass index (BMI).
METHODS: Mendelian randomization (MR) study using summary statistics from genome-wide associations of vasectomy (462,933 European ancestry), ever had PSA test (200,410 European ancestry), time since last PSA test (46,104 European ancestry), BMI (152,893 European males) and PCa (79,148 cases, 61,106 controls, European ancestry). This study was conducted using summary statistic data from large, previously described cohorts. Data analyses were conducted from November 2022 to June 2023.
RESULTS: Genetic liability to vasectomy was not associated with PCa (OR = 0.07, 95% CI: 2.95  ×  10-3 , 1.54, p = 0.09). Genetic liability to vasectomy was not associated with ever had PSA test (OR = 1.08, 95% CI: 0.49-2.39, p = 0.83) and time since last PSA test (OR = 2.49, 95% CI: 0.71-8.79, p = 0.16). After controlling for PSA test and BMI, there remains no causal relationship between vasectomy and PCa risk (OR = 5.56  ×  10-4 , 95% CI: 7.29  ×  10-8 , 4.24, p = 0.10). The reverse MR results showed a weak association between PCa and vasectomy patients (OR = 1.00, 95% CI: 1.0003-1.0033, p = 0.02).
CONCLUSIONS: Based on the available evidence from MR analysis, the current findings did not support vasectomy being a risk factor for PCa. Further work is required to provide additional confirmation and validation of the potential link.

BACKGROUND: The opioid crisis demands novel solutions for postoperative pain control. Traditional Chinese medicine (TCM) has used herbs for the treatment of pain for thousands of years. We studied whether a synergistic multimodal TCM supplement could reduce the need for conventional pain pills for low risk surgical procedures.
METHODS: In a Phase I/II, prospective, double-blind, placebo-controlled, randomized clinical trial (PRCT), 93 patients were randomized to either TCM supplement or placebo oral medication for low-risk outpatient surgical procedures. Study medications began 3 days preoperatively and continued for 5 days postoperatively. Conventional pain pill use was not restricted. Patients were monitored postoperatively for all forms of pain pill use (Pain Pill Scoring Sheet) and subjective pain ratings (Brief Pain Inventory Short Form). Primary outcomes included type and number of pain pills used and subjective pain ratings. Secondary outcomes included an assessment of mood, general activity, sleep, and enjoyment of life.
RESULTS: TCM use well tolerated. Conventional pain pill use was similar between groups. Linear regression analysis revealed that TCM reduced postoperative pain 3 times faster than placebo (P < .0001) with a 4-fold greater magnitude of relief by postoperative day 5 (P = .008). TCM also significantly improved sleep habits (P = .049) during the postoperative period. TCM effect was independent of type of surgery or amount of preoperative pain.
CONCLUSIONS: This PRCT is the first to show that a multimodal, synergistic TCM supplement is safe and can effectively reduce acute postoperative pain more rapidly, and to a lower level, than conventional pain pills alone.

UNASSIGNED: Vasectomy is a safe and effective permanent contraceptive method. In Ethiopia, this method underutilized since the focus has been on contraceptive methods available for women rather than men. Few studies have examined this method in Ethiopia so far, so it is important to note that there is a lack of data about the method in the study area regarding married men\'s knowledge and attitudes toward vasectomy.
UNASSIGNED: A community-based cross-sectional study conducted from May 2 to June 2, 2021, at Arba Minch town. A simple random sampling technique used to select 624 study participants. Data collected via the face-to-face interview technique using a semi-structured and pretested questionnaire. Data entered in EpiData 3.1, cleaned, and analyzed using SPSS for Windows version 25.0. Descriptive statistics and bivariable and multivariable logistic regression analyses were performed. An adjusted odds ratio (AOR) with 95% CI and a p-value < 0.05 estimated to identify statistically significant variables associated with knowledge and attitude towards vasectomy.
UNASSIGNED: From the total of 624 study subjects, 600 had completed the questionnaire, giving a response rate of 96.2%. From those who heard about vasectomy (36.8%), only 60.6% of men had good knowledge, and 48.4% had a positive attitude towards vasectomy. Men\'s knowledge of vasectomy was significantly associated with college or university attendance (AOR = 4.05, 95% CI: 1.720-9.521), age 31-40 years (AOR = 2.308, 95% CI: 1.081-4.929), and age ≥41 years (AOR = 2.671, 95% CI: 1.159-6.156). Age ≥41 years (AOR=4.735 95% CI 2.015-11.129), age of last child (AOR=3.868 CI 1.554-9.632) and discussing family planning with wife (AOR=2.821 95% CI 1.559-5.105) were significantly associated with attitude of men towards vasectomy.
UNASSIGNED: In this study area, six out of ten and half of the married men had good knowledge and a positive attitude towards vasectomy, respectively.

Approximately half a million vasectomies are performed every year in the USA. There is a paucity of literature on the impact of male sterilization on the semen microbiome and whether it prompts microbiota dysbiosis.
To investigate if vasectomy induces changes in the seminal microbiome via comparison of semen samples from men before and after vasectomy, and if the seminal microbiome profiles for vasectomized men follow a particular pattern with respect to diversity and abundance.
From July 2021 to February 2022, we prospectively collected and analyzed semen samples from 58 men at one outpatient clinic. Eighteen men provided a semen sample before and 3 mo after vasectomy. We also collected semen samples from 22 fertile nonvasectomized men and from a further 18 vasectomized men at 3 mo after vasectomy.
Semen microbiome α-diversity, beta-diversity, and relative abundance were compared initially between paired and then between unpaired vasectomized and nonvasectomized samples. Analysis of variance (ANOVA), permutational multivariate ANOVA, and analysis of the composition of microbiomes with bias correction were used to assess differences.
In both paired and unpaired sets of samples, a decreasing trend for α-diversity in semen after vasectomy was observed. Shannon diversity, the relative abundance of species with an abundance >2%, and composition were not significantly changed. Sphingomonas, Brevundimonas, and Paracoccus abundance decreased after vasectomy, while Corynebacterium abundance increased. The results may be limited by the sample size and lack of demographic heterogeneity.
Vasectomy is followed by a decrease in α-diversity and changes in the relative abundance of bacterial species in the semen microbiome. Further investigation is necessary to understand the clinical significance of these changes after vasectomy.
We evaluated changes in the bacteria species in semen after vasectomy. We found that vasectomy decreased the richness and evenness of bacteria species in semen, but the overall bacterial community remained similar. Further studies are needed to assess the implications of changes in semen bacteria after vasectomy.

UNASSIGNED: Post-vasectomy pain syndrome (PVPS) is difficult to treat. Direct damage to the vas deferens, inflammation, compression of nerves through fibrotic adhesions, and congestion of the epididymis are known to cause PVPS. The purpose of this study was to evaluate whether the application of anti-adhesion agents after vasectomy can reduce the degree of adhesion and fibrosis in a rat model.
UNASSIGNED: In the study, 11 Sprague-Dawley rats (22 vas deferens) from each group were evaluated. In the experimental group, surgery was terminated after applying the anti-adhesion agent; this was not applied in the control group. After 14 days of vasectomy, the scrotum was dissected to evaluate the degree of gross adhesion at the vasectomy site. Histological examination of the surrounding tissues, including the vas deferens and the spermatic cord, was also performed.
UNASSIGNED: Adhesions were not observed in 72.73% (16/22) rats from the experimental group, in which the anti-adhesion agent was applied; in contrast, the incidence of adhesions in the control group was 100%. There was a statistically significant relationship between the distribution of grades for adhesion and anti-adhesion agent (chi-square, P<0.001). On classification of fibrosis and inflammation, application of the anti-adhesion agent was significantly associated with lower grade inflammation and fibrosis compared to that of the control group (chi-square, P=0.001). The rate of intact muscle structure was 90.91% (20/22) in the experimental group, and 36.36% (8/22) in the control group, and the application of the anti-adhesion agent demonstrated significant association with preservation of intact muscle structure (chi-square, P<0.001).
UNASSIGNED: The application of an anti-adhesion agent after vasectomy prevented the development of adhesion, fibrosis, and inflammation reaction and further reduced structural destruction.

In the Muslim world, the use and acceptance of long-term and permanent contraceptives were limited. Our aim was to investigate those limiting factors so we can help making these methods widely available and acceptable to the society.
There were 1365 women from Facebook groups in the period 08/10/2020-8/11/2020. Participants were married women, living in Jordan. This was a cross-sectional study. Statistical Package for Social Sciences (SPSS), version 16, software was used for statistical analysis (Chicago, Illinois, USA).
Among participants, 22.3% had never used any contraceptives. Non-hormonal IUCD was the most commonly used method. There was a statistically significant association between the use of hormonal IUCD and women\'s age, marriage duration, education and number of children (p < 0.0001). Tubal ligation was adopted by only 44 (3.22%) participants. 19.68% of participants declined tubal ligation merely due to religious issues. Women who completed only high school level of education underwent tubal ligation significantly more than those with university (Bachelor) and post-university (Master or PhD) degrees (p < 0.0001 and 0.026, respectively). Only 1.83% of women\'s partners underwent vasectomy, the majority of these vasectomies (72.0%) were done because of the need for lifelong contraception. Around 17% of women\'s partners had poor knowledge about vasectomy. Further, women\'s employment status (housewives or full-time employees) was found to be the only variable that affected acceptance of vasectomy (p = 0.0047).
Women endured a heavy burden of contraception. Cultural and religious taboos influenced tubal ligation. Vasectomy was still very rarely adopted by men due to the lack of knowledge about the procedure. Our results raised the need for further dissemination of contraception knowledge and counselling through the primary care and maternity centers, mosques and media in official, comprehensive and integrated programs. Future research is needed in the field of permanent contraceptive methods.

OBJECTIVE: A fresh post-vasectomy semen analysis showing 100,000 nonmotile sperm/mL or less confirms sterility. Mailed sample or self-testing at home with SpermCheck® Vasectomy decreases the inconvenience of producing a fresh sample, but without assessing motility. We evaluated if there is a sperm concentration under which no motile sperm are observed that could fortify the use of these alternatives.
METHODS: We conducted a study of post-vasectomy semen analyses performed at the andrology laboratory of the Quebec City university hospital, Canada. Sperm concentration and motility were assessed on fresh noncentrifuged 10 µL samples at 400× magnification. We calculated the proportion of post-vasectomy semen analysis showing motile sperm according to sperm concentration for all and first prescribed post-vasectomy semen analysis by the 5 physicians who performed the most vasectomies.
RESULTS: We identified 6,492 post-vasectomy semen analyses prescribed by 169 physicians. The 5 vasectomists prescribed 95.6% (6,204) of the post-vasectomy semen analyses; 96.1% (5,965) were first tests. We observed motility in all sperm concentration strata but it decreased with lower concentrations. At the first post-vasectomy semen analysis, among patients with less than 1 million, 250,000 and 100,000 sperm/mL, 0.5% (27/5,842) and 0.3% (19/5,760 and 17/5,725) had motility, respectively.
CONCLUSIONS: If the first post-vasectomy semen analysis on a mailed sample shows less than 1 million sperm/mL, we recommend requesting an additional mailed sample instead of a fresh sample. SpermCheck Vasectomy could falsely indicate a successful vasectomy in a very small proportion of cases. The optimal post-vasectomy semen analysis strategy must involve shared decision making, balancing the inconvenience of providing a fresh sample with the risk of a false-negative result.

UNASSIGNED: Even though vasectomy is one of the safest, simplest, and most effective family planning methods available for men, it is one of the least used contraceptive methods in the developing world, including Ethiopia. The goal of this study was to assess the level of knowledge towards vasectomy and its associated factors among married men in Debre Tabor Town.
UNASSIGNED: A community-based cross-sectional study was conducted from December 5-25, 2019. A total of 413 married men participated and selected by simple random sampling. Data was entered using EpiData version 4.2 and analyzed by SPSS version 23. A bivariable and multivariable logistic regression model was carried out. Finally, variables having a P-value of <0.05 at 95% CI were considered as statistically significant.
UNASSIGNED: In this study, 38.5% of men had an adequate level of knowledge about vasectomy. Multivariable logistic regression showed that an educational status of secondary education and college and above (AOR=4.70, 95% CI=1.26-17.55; and AOR=8.36, 95% CI=2.41-28.97, respectively), having four or more alive children (AOR=0.51, 95% CI=0.29-0.89), and positive attitude (AOR=2.47, 95% CI=1.58-3.86) were significantly associated with knowledge of vasectomy.
UNASSIGNED: Knowledge of married men towards vasectomy was relatively low. Educational status, number of children, and attitude were statistically significant with the men\'s knowledge about vasectomy. Emphasis should therefore be put on improving the educational status of men and positively changing the male upbringing culture right from their childhood which will also improve their attitude towards vasectomy in the future.

An effective method of birth control in men yet least accepted and patronized is vasectomy. Vasectomy provides health benefits to the user, his direct family, and the entire population as it helps to control population growth. This article explored the beliefs and attitudes of commercial drivers on vasectomy in an urban community in Ghana. The study employed qualitative exploratory design using focus group discussion. Data were collected from 12 married men between the ages of 45 to 60 years who were selected through purposive sampling method. The focus group discussions were audiotaped, handwritten, and recorded. Recorded data were then transcribed verbatim, and the current version of the NVivo software for analyzing qualitative data was used to manage the data. Three major themes emerged from the study: knowledge of respondents on vasectomy, beliefs, and attitudes of married men toward vasectomy. Each of the themes had three subthemes. The study revealed that vasectomy was perceived by some of the respondents to be synonymous to castration which comes with negative effects. Inadequate knowledge, negative perceptions, future uncertainty, and the irreversible nature of vasectomy emerged as contributing to the low patronage and some of the reasons why most of the respondents had no intentions of opting for vasectomy. In view of these findings, it is imperative for all stakeholders to give urgent attention to behavior change strategies that can be put in action to ameliorate the effects of these negative attitudes and misbeliefs. Ultimately, the tide can be turned around and vasectomy will be a preferred alternative when it comes to family planning in Ghana.

UNASSIGNED: To compare postoperative pain control among men who received different quantities of narcotic prescriptions following scrotal surgery. We hypothesized that men receiving eight vs four pills of acetaminophen 300 mg/codeine 30 mg there would be no significant difference in mean pain following scrotal and inguinal surgery.
UNASSIGNED: In this prospective, open-label study, men who underwent scrotal surgery received eight or four acetaminophen 300 mg/codeine 30 mg pills. Men were encouraged to take scheduled non-steroidal anti-inflammatory drugs (NSAIDs), apply ice on the incision, and take acetaminophen 300 mg/codeine 30 mg as needed for breakthrough pain. Men were evaluated within 1-2 weeks after surgery. Statistical analysis was performed using Microsoft Excel and Stata/IC 15.1.
UNASSIGNED: A total of eighty-seven men met inclusion criteria, fifty-four men received eight acetaminophen/codeine pills, and thirty-three men received four pills. There was no significant difference in mean pain score (0-10) of men receiving eight pills vs four pills in the week after surgery (3.6 ± 1.9 vs 3.3 ± 1.8, P = .5004). Of men who used NSAIDs and ice, 93.5% and 92.3% found them to be moderately or very helpful.
UNASSIGNED: Reducing the total prescription of combined narcotic/non-narcotic medication is not associated with increased postoperative pain in patients undergoing scrotal/inguinal surgery. There was no difference in postoperative pain in men taking eight or four acetaminophen 300 mg/codeine 30 mg pills. A limited prescription of eight or four pills was adequate for pain control in the majority of men who underwent scrotal surgery. NSAIDs and ice were found to be useful adjuncts for pain relief by those who used them.