People are advised to go for routine checkups to make sure nothing is wrong in their bodies. If something is found in its earlier stages it is much easier to treat than after it has developed more fully. A localized cancer is much easier to treat than it is after it has spread, chas vichalila.
Is this a medicine blog? That would be silly as I know nothing about medicine and almost never take any on principle.
This is an Avodas Hashem blog and that was a mashal.
The nimshal is - if one is in a marriage and there are small but "malignant" problems, if not treated swiftly they will develop into full-blown problems and by then it will be too late. Most couples [says John Gottman] go to therapy approximately 6 years too late.
The person to whom this post is intended knows who he is. Please pay heed!