How long it takes to regain hardness from abstinence is related to the cause of insufficient erection hardness and requires specific analysis of the problem. If the lack of erectile hardness is caused by frequent masturbation, timely abstinence will help to improve, but the abstinence time should not be too short, about 1-3 months. However, if the lack of erectile hardness is due to psychological reasons, diseases, etc., the role of abstinence alone is limited and the primary cause needs to be corrected in a timely manner. If it is due to psychological factors such as excessive tension or lack of self-confidence, proper psychological adjustment is needed. If it is caused by genitourinary system lesions, such as prostatitis, prostate enlargement, varicocele, etc., the primary cause needs to be actively treated. If the erection is not hard enough, on the one hand, you need to go to the urology department or male department for treatment under the guidance of professional doctors; on the other hand, you need to develop good habits of life and rest, ensure sufficient sleep, abstain from smoking and alcohol, and keep your mind in the right attitude to keep your mood relaxed, which will also help you recover from the condition.