VISA is refused due to non satisfactory profile of an applicant.
Countries have their own norms while issuing the Visa. Some countries decide the visa application on the basis of document and/or, require mandatory Interview and/or both.
Some countries do not disclose the reason of refusal and only disclose relevant sections of their immigration Act like USA whereas some country describe detail reason of visa refusal along with the relevant section of the immigration Act under which they are denying the application like U.K.
Rules, Regulations and Laws under certain visa categories of non-immigrant visa do not permit to appeal or administrative review whereas certain category permits.
Rules, Regulations and Laws under certain visa categories of immigrant visa permit to appeal or administrative review the decision.
USA in most of cases generally refuse visa application under section 214(b) of Immigration Act and sometimes permit for administrative review under section 221(g) whereas U.K. mostly refuse visa application under appendix V of the Immigration rules.
Canada mostly refuse the application under section 11(1) of Immigration and Refugee Protection Act but the applicant has option to go for Judicial Review at Canadian Federal court.
Schengen refuse visa with the option to appeal/ Review.
Each application after refusal has their own merit left for the reapply of the Visa so it is better to consult with the good immigration lawyer.
You need to be careful next time keeping in mind the earlier reasons of refusal.
Some applicant just try to cover up those ground which was cause of earlier visa refusal or visa denial. But success ratio of these kind of applications are around 25-30%, especially the countries such as USA, U.K. Europe.