The early stages of periodontal disease show few warning signs or symptoms. Many people go unaware of a periodontal problem until their gums become soft and bleed slightly when they brush their teeth. As the periodontal disease progresses, there are more-serious changes, a person would start to notice.

some of these signs are:    

Swollen gums, bright red gums, Tender gums, gums that pull away form the tooth (receding gums), Gaps or spaces developing between your teeth, persistent bad breath or bad taste in your mouth and any loose teeth.    Prevent periodontal disease by having good dental care habits at home and by seeing your dentist regularly.