Heart attack: This is very rare. As long as your heart is healthy, there is no reason to abstain from sex. After all, it counts as aerobic exercise, which is actually good for your heart. As long as you can do other exercises like walking or jogging without problem, you should be healthy enough for sex. Just check with your doctor first if you have symptoms like chest pain, shortness of breath, or an irregular heartbeat.
Bacteria usually live outside the vagina. During sex, a penis, finger, or sex toy can give these germs an easy path up the urethra and into your urinary system. The signs that you have urinary tract infection include burning when you pee and blood in your urine. To avoid an infection, urinate immediately after sex to wash away any bacteria.
People with rare condition of post-orgasmic disease syndrome, develop flu-like or allergy-like symptoms after orgasm. Fever, stuffy nose, sneezing, headache and itchy eyes can start within seconds or up to a few hours after sex. It may last for a few days. Doctors don’t know what causes this reaction, but it’s more common in men. If you have this syndrome, allergy medications or antidepressants may help.