Difficulty in maintaining an erection even during early intimacy, such as kissing or foreplay, is quite common and can happen for both physical and psychological reasons. One of the most frequent causes is performance anxiety, where worry about sexual performance leads to loss of erection. Stress, tiredness, lack of sleep, depression, or relationship concerns can also affect sexual response. Lifestyle factors such as smoking, alcohol use, lack of exercise, and being overweight may contribute as well. In some cases, medical conditions like diabetes, high blood pressure, thyroid imbalance, or low testosterone can play a role. Certain medicines can also reduce sexual performance. Treatment depends on the cause. Improving sleep, reducing stress, engaging in regular exercise, and avoiding alcohol and smoking can significantly help. Open communication with your partner may reduce anxiety. If the problem persists, it is important to consult a doctor for a proper evaluation. Medicines may be prescribed if required, along with counselling or therapy when emotional factors are involved.