The main STD that causes significant unexplained weight loss is Syphilis, especially during its secondary stage, alongside symptoms like fever, rash, fatigue, and swollen lymph nodes, due to the body fighting the infection and potentially experiencing loss of appetite. Other STIs, like advanced HIV/AIDS, can also cause wasting, while hepatitis (also sexually transmitted) can lead to loss of appetite and weight loss.
Syphilis. Characteristics: Syphilis is a bacterial STI that can cause painless ulcers in the anal and genital regions and rashes on the body, palms of the hands and soles of the feet. In rarer cases, it can lead to meningitis, vision and hearing loss and even stroke.
Weight trend graphs show significant weight loss in Chlamydia infected adults vs. uninfected adults between days 8 and 28 post infection (on average 5.9 g smaller or 26% weight reduction). However, infected adults recovered lost weight by day 44 (A).
Whipple's disease is a rare disease caused by Tropheryma whipplei bacteria. The bacteria affect your small intestine's ability to process nutrients. Symptoms are joint pain followed by chronic diarrhea, abdominal pain and unexplained weight loss. Antibiotics eliminate the bacteria, but the infection may come back.
The first symptom of syphilis is a small sore called a chancre (SHANG-kur). The sore is often painless. It appears at the spot where the bacteria entered your body. Most people with syphilis develop only one chancre.
Signs vary in each stage. Primary Stage: The first sign of syphilis is often a small, round, firm sore. These appear at the place where it entered the body such as the vulva, vagina, tongue, or lips. These signs may be inside the vagina.
Flu-like symptoms – Some STIs, like HIV, may cause flu-like symptoms such as fever, chills, fatigue and swollen lymph nodes.
Some causes of unintentional weight loss include: mental health conditions, such as depression, anxiety, eating disorders and obsessive compulsive disorder (OCD) problems with digestion, such as coeliac disease or inflammatory bowel disease (IBD) hormone conditions, such as an overactive thyroid or type 1 diabetes.
Signs and symptoms of an infection
GI conditions that commonly lead to sudden weight loss include:
Secondary-stage syphilis commonly causes fever, fatigue, loss of appetite, and weight loss. Most people develop sores and a rash, and any body surface can be affected. Even without treatment, the sores eventually go away in a few days to weeks, but they may last for months or return after healing.
Human immunodeficiency virus, which is widely known as HIV, is the virus that causes AIDS (acquired immunodeficiency syndrome). AIDS is a serious, life-threatening illness with a variety of symptoms (16).
Late-stage chlamydia refers to an infection that has spread to other parts of the body. For example, it may have spread to the cervix (cervicitis), testicular tubes (epididymitis), eyes (conjunctivitis), or throat (pharyngitis), causing inflammation and pain.
Flu-Like Symptoms: Fatigue, Fever, Nausea, Vomiting, or Headaches. Fatigue is a symptom of a late-stage chlamydial or gonorrheal infection. It can also be caused by Hepatitis A, B, and C.
Chlamydia. This kind of bacterial infection can spread through sexual contact with the infected individual. The disease may pass on through oral sex or sharing of sex toys. Sometimes, having oral sex with a partner can cause chlamydia in your throat.
Some viral STDs stay with you for life, such as herpes and HIV. Others, such as hepatitis B and human papillomavirus (HPV), can be prevented with vaccines but cannot be cured.
Signs and symptoms of an infection
Coughing and Sneezing—Within a few days of a viral infection, the fluid from a runny nose may change color from clear to yellow to green. 4 Mucus is designed to trap offending viruses, which are efficiently and quickly expelled from the body through coughing and sneezing.
What are the signs of a strong immune system?
Unexplained weight loss
If you've lost more than 5% of your body weight during the past 6 to 12 months talk to your health care provider.
Weight loss is more common in some cancer types. About 60 out of 100 people with lung cancer (60%) have a loss of appetite and significant weight loss at the time of their diagnosis. In people with upper gastrointestinal cancer, this number is 80 out of 100 people (80%).
Imaging Modalities Used to Investigate Unexplained Weight Loss
Syphilis. This is a potentially life-threatening bacterial infection from vaginal, anal or oral sex. It can spread if the sores caused by syphilis touch the skin of a healthy person. Sores can be found on the penis, vagina, anus, in the rectum or on the lips and mouth.
How Long Does It Take for an STD to Show Up?
Gonorrhoea is a bacterial infection; this means it can be treated with antibiotics. Most people are treated for gonorrhoea with one antibiotic injection (usually into the buttock) and one antibiotic tablet. You then attend a follow up appointment 1-2 weeks after the injection to make sure the Gonorrhoea has gone.