1. come to a head - Verb
2. come to a head - Phrase
(idiomatic) To rapidly reach a turning point or climax.
The escalating crisis between England and her American colonies came to a head when fighting broke out in 1775.
(idiomatic) To suddenly reveal that which has lain latent for a time.
His festering anger came to a head after the incident.
(idiomatic) To suddenly make mature or perfected that which was inchoate or imperfectly formed.
(medicine, of an abscess) To reach its final stage.
Source: en.wiktionary.orgApril 5, 2017, 9:28 pm Speculation is rife in political circles that the internal crisis of the government will come to a head if President Maithripala Sirisena attempts a Cabinet reshuffle without the UNP’s concurrence. Source: Internet
As matters come to a head, Gamache marshals his forces, calling on the few colleagues he has left who be trustworthy. Source: Internet
Sarah's husband reveals a shocking secret, and Margaret's years of unhappiness with her husband have suddenly come to a head. Source: Internet
She enjoys helping Ms. Moore grow orchids, but details about her mother's past and the cruelty of the government come to a head when she comes in contact with a boy from the other side of the Line who needs her help. Source: Internet
Eventually, these problems come to a head. Source: Internet
Seventeen years later, when Mitch suddenly returns to Small Plains, simmering tensions come to a head, ghosts that had long slumbered whisper anew, and the secrets that some wish would stay buried rise again from the grave of the Virgin. Source: Internet