The problem of suffering leads many people away from God even though the Bible tells us why there is suffering and when it will end.
Genesis 3:16-19 tells us the punishment God gave Adam and his wife for their sin against God. Women would suffer in childbirth. Their desire would be toward their husbands who would rule over them. Men would no longer work: they would toil. Fields would have thorns and weeds. Then they would die.
The world is a better place because of suffering as it helps us improve. Suffering makes us endure, which can lead to other good qualities. (Roman 5:3-4)
I Peter 1:7 says, “That the trial of your faith being much more precious than of gold that perisheth though it be tried with fire, might be found to praise and honor and glory at the appearing of Jesus Christ…” When gold is refined it is heated and the impurities rise to the top. The goldsmith takes them off the top. When the goldsmith can see his face in the gold he knows it is pure. The goldsmith is God. He heats us with suffering and wipes away the impurities as they come to the top. When God can see His character in us at the Judgment Day he knows we are pure.
At the Judgment Day when the righteous get everlasting life, “The Lord GOD will wipe away tears from all faces…” (Isaiah 25:8, KJV)
So suffering came on mankind because of sin, and can help man overcome sin. When the righteous sin no more at the Day of Judgment, death and suffering will end because God will see His face in them