re·cur 
/rɪˈkɚ/ verb
re·curs; re·curred; re·cur·ring /rɪˈkɚ/ verb [no obj] : to happen or appear again : to occur again
▪ There is only a slight chance that the disease will recur. ▪ The same problem keeps recurring.
▪ There is only a slight chance that the disease will recur. ▪ The same problem keeps recurring.
— recurring adjective
▪ She suffers from recurring headaches. ▪ a recurring injury/nightmare
▪ She suffers from recurring headaches. ▪ a recurring injury/nightmare
