There are various kinds of medical and other insurance policies available in the market. Each policy is guided by certain clauses and has a different kind of coverage. The medical policies in general are the ones that help in the coverage of the medical expenses in cases of ill health and hospitalisation. These medical insurance policies are very essential these days with rise in the diseases and the cost of curing them. Though the medical insurance policies are useful, most of these medical insurance policies do not provide a critical illness cover. A critical illness cover is the coverage of the expenses in the curing of the critical diseases. The critical diseases are the terminal and the ongoing diseases whose expenses are very high. The medical insurance companies define few of the disease as the critical ones and do not provide the cover on them. However there are certain insurance policies that also provide the critical illness cover and thus even they are little expensive than the regular ones, one must opt for the policies that provide the critical illness cover. These policies are beneficial in the time of distress and thus it is beneficial for a person to have a critical illness cover.